【推荐2】单句改错
1. My little son was not used to be away from home for so long.
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2. I am considering delaying practicing to play football because of weather.
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3. He breaking the school rule has made our headmaster annoyed.
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4. She had a hard time to make ends meet after her husband went missing.
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5. Do you think you surfing the Internet is a good hobby?
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6. He devotes himself to look into the matter.
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7. It is no use for you searching for him in this crowd;it is like looking for a needle in a sea.
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8. We stress that we don’t permit to smoke in the lecture room.
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9. Just shortly after the earthquake they set up an operated table.
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10. I   prefer walking along the country road to stay at home watching TV all the time.
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【推荐3】单句改错
1. Five minutes later, Tony saw parents.
2. Close to the school there was a beautiful park with many trees around them.
3. I wanted to do anything special for him at his retirement party.
4. If you were me, would I talk to him?
5. We appreciate our apologies and goodwill, but we hope that you can figure out a good way of settling the matter.
6. If it's a false alarm and there is no fire, your teacher will lead us back to the classroom.
7. Both my parents miss you a lot. So does our friend, Cathy...When you come, you can stay with ourselves.
8. We chose the cheapest biscuits and ate it under a tree.
9. We would be grateful if you could join them that day.
10. I wonder if you can tell me something about myself, your family and daily school.

【推荐1】每个句子中仅有一处错误，每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（^）, 并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：每处错误及其修改均仅限一词。
1. He is so selfless that he is thought high of by the neighbors.
2. This book, The Old Man and the Sea, is well worth read.
3. The Olympic Games are held every four year.
4. The project is in charge of an experienced worker.
5. It was your determination which changed my mother’s attitude to you.
6. He feels happy that the problem has solved at last.
7. As a result for his carelessness, he failed the exam.
8. I have some doubt in my mind that they will be glad to see me.
9. It is known to us all, the burning of any fuel requires oxygen.
10. These books were belonged to our school library.

【推荐2】单句改错
增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。
删除：把多余的词用斜线(＼)划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
1. Only if we do enough self-protection, we stay away from Covid-19.
2. I’m working on my essay. Would you mind turn down your music a little bit?
3. Sometimes, I start the second declaration first and sometimes, I start the first declaration the second time.
4. Simon is such responsible a boy that he is chosen chairman of the Student Union.
5. As time going by, the virus will probably become weaker and less active.
6. We are still in the middle of 2020, that is considered to be an eventful year.
7. Apart from self-protection, we have no choice but wait for the vaccine.
8. To avoid be trapped in heavy traffic at the rush hour, I usually take the subway to work.
9. Henry became addictive to online games, which had a bad effect on his schoolwork.
10. Quite a lot of species have been died out so far, resulting from urbanization.

【推荐1】假定英语课上老师要求同学们交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。
删除：把多余的词用斜线(\)划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1.每处错误及其修改均仅限一词；
2.只允许修改10处，多者(从第11处起)不计分。
Scientists used a worldwide network of telescopes see and capture the first-ever picture of a black hole. The recent visual confirmation of black holes acts for the confirmation of Albert Einstein's theory of general relativity.
Black holes are made up of huge amounts of matter squeezed into a small area, created a gravitational(万有引力的) field which draws in something around it. They also had a way of super-heating the material around them and warping spacetime(扭曲时空). Material is heated to billions of degrees and reaches nearly the speed of the light. Light bends around the gravity of the black hole, where creates the photon(光子) ring seen in the image.
Relative to other object, supermassive black holes are actual small. They may seem invisible, and the way they interact with the material around them is the giveaway.

【推荐2】增加：在缺词处加一个漏字的符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意： 每处错误及其修改均仅限一词。
1. It was a time which many young people were dying to go abroad.
2. I do see it the other day and I couldn’t believe my eyes.
3. Not having been made full preparations, they put off the meeting.
4. The dog which he used to be afraid is his favorite animal now.
5. I recommended that he avoided junk food whenever possible.
6. It is generally acknowledge that women hold up half the sky.
7. Modern technology enables us to work and live more comfortable.
8. It was the first time she has been to Guilin and she really enjoyed it.
9. Without your help, finishing the task ahead of time would be out of a question.
10. The event will be one of the important anniversary in 2021.

【推荐3】每句只有一处错误请把它改正过来。注意：没有填词或删词的错误。
1. Now I feel strong that I shall have to improve my English, especially when I heard his speech.
2. Senior citizens and people with disabilities will be able to go anywhere in the world using high-tech cameras attaching to their head.
3. It’s frightened to be outside in a sandstorm.
4. Tornadoes can destroy houses, leave the furniture inside exactly where it was.
5. By the time the worse tornado of all time in 1925 ended, more than 700 people have been killed and 2,700 had been injured.
6. When the lava reached the sea, there was the possible of a huge tidal wave which could flood half the island.
7. Sandstorms are often such thick that you cannot see the sun.
8. Mencius was a thinker whose teachings were very similar to that of Confucius.
9. Mencius believed that the reason which man differs from animals is that man is good.
10. What the headmaster said the other day didn’t make sense of me.

【推荐2】改错
1. The games my parents taught me where I was a child turned out to be very useful later in my life.
2. A good storyteller must be able to hold his listeners' curiosity before he reaches the end of the story．
3. As young men, we should learn to stand up when we fall in our life．
4. I don't mind where I live unless there is my favorite job．
5. Clever although he is, he doesn't study well．
6. I felt that it would be a victory for us even   we lost the game．
7. Any measure of ad's performance is entirely pointless when it could be viewed by a person．
8. Find more chances to praise your children often, otherwise you'll find they are willing to communicate with you．
9. With time goes by, the little boy is becoming stronger and stronger．
10. It won't matter even he refuses．
11. Next time that I plan to travel in London, I'm going to take a plane．