4 . 每个句子中有一处语言错误，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：1.每处错误及其修改均仅限一词；
1. After the earthquake, the whole city was in ruin.
2. You should make the use of your spare time to do some reading.
3. My teacher advised myself to keep a diary.
4. One day he got up early and went to school as usually.
5. Jerry didn’t come to school today because his illness.
6. When he told us the excited news, we all jumped with joy.
7. The number of cars in this city are keeping rising these days.
8. Our legs were such heavy and cold that they felt like blocks of ice.
9. My sister insisted that she organized the trip properly.
10. WangPeng came into the classroom, sat down in his seat and begin to read a book.