1 . 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. A large quantity of face masks were delivered to Africa last month.
2. I have three partners in the group, two of them have difficulty learning English.
3. After her journey from abroad, Jenny returned home, exhaustedly.
4. It was in the TV studio which was built last year where the interview was recorded.
5. When you study the local map, you will find this town is three times the size as that one.
6. He made a practical suggestion, which I think it is of great benefit to everyone present at the meeting.
7. My friend Jim is quite shy, but can you image him sing at the party held to welcome the exchange students?
8. Fully occupying with her work, she didn’t notice Peter enter the room.
9. The protesters demanded that the policeman gave a reasonable explanation for the shooting.
10. The fire broke out again, killing ten people. The official in charge of the security is blame.

2 . 单句改错
1. I’m using the pen which he bought it yesterday.
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2. The man whom I spoke just now is from Canada.
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3. He referred to the workers and the factory which he visited two weeks ago.
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4. Only those learn how to live can get to know themselves and life.
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5. The little problems what we meet in our daily lives may be inspirations for great inventions.
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6. We’ll never forget the days when we spent together happily in the middle school.
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7. More than 20 boys, most of them enjoy playing basketball, want to watch the coming game.
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8. Miss Chen is the only one of the few teachers that give us wonderful English lessons in our school.
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9. The house in that we live is very small.
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10. His dog, that was very old, became ill and finally died.
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3 .
1. Meet my teacher, after all thirty years in Boston, was an unforgettable moment for me, one I will always treasure.
2. From the puzzling look on the students" faces, I know they didn’t understand me clearly.
3. The government is trying hard to have the people’s living standard risen.
4. I will not go to the party unless being invited.
5. Mum promised to buy an English-English dictionary to me as a present.
6. All the neighbors admire this family that the parents are treating their child like a friend.
7. The factory produces half a million pairs of shoes every year; 80% of them are sold abroad.
8. — Come on in. I have a gift for you.
— Oh, that’s so nice of you! I never thought you will give me a gift.
9. I’ll appreciate that if you can phone me to tell me the exact time.
10. What was reported in the newspaper that fewer traffic accidents happened this year.