4 . 修改以下各题中的错误，每题仅涉及一个单词的添加、删除或修改。
增加：在缺词处下加一个漏字符号（∧），并在句子后面的横线处写出该加的词。
删除：把多余的词在句中用（\）划掉，并在句子后面的横线处写出删除的词并加上删除符号。
修改：在错的词下划一横线，并在句子后面的横线处写出修改后的词。
注意：每处错误及修改仅限一词。
1. I am glad to see you make a rapid progress in your language study.
2. With a good command of English, she has no difficulty talk with her teacher from Australia.
3. Her problems at school began while she started to learn to read and write.
4. In the past 20 years, China made great achievements in environmental protection.
5. Honest, I understood how you felt when your favorite plate dropped on the ground.
6. After a fire broke out in the lab, a lot of equipment were damaged.
7. The boy, abandoned by his parents and short of money, had to work at night to support him.
8. The restaurant isn’t half as better as that restaurant we went to yesterday.
9. House prices go up and people from the area cannot afford buy a house there.
10. He is now concentrating to young kids because he thinks the problem starts at an early age.