Unit 6 Fun Cycling
例：改錯(cuò)
1. the children were running on the playground as fast as they can.
2. since her husband had died，so she had to support her family.
3. he won’t go out until his mother will come.
4. he was very foolish that he didn’t pass such an easy exam.
5. tom had gone out as soon as his mother got home. keys：1. can 改為could 2. 去掉so 3. will come改為 comes 4. very改為 so 5.as soon as 改為when
6. it was three months since he came to our school.
7. the playground of our school is larger than their school.
8. the streets in nanjing are wider than shanghai.
9. whatever there is plenty of sun and rain，the fields are green.
10. she sings songs as if she is a bird. keys：6. was 改為is 7. than 之后加上that of 8. than 后加 those in 9. whatever改為 wherever 10. is改為 were