1。--the boys are playing football,aren't they?
--- I guess not. (为什么不能说 I don't guess so.)
2.One at a time 这句话是什么意思? 最好造个句子
3。-- I won't do it anymore
---________
A. why not B why don't do any more C why not do D why don't 为什么选D不选A?
4。he said that his sister had passed the exam,and _that__ she would go to college in about 20 days. (为什么that 不能省略)
5 the man we followed suddenly stopped and looked as if ___ whether he was going in the right direction, (为什么填to see?)
6. _____ you need is a hammer and some nails.(为什么填something? all 不可以吗)
7。as you've never been there, i 'll have someone ____ you the way. (为什么填show,不填showed 或to show ?)