模仿例句改写句子.

题目

模仿例句改写句子.
Example:He must be in the office.→He must have been in the office.
He can't stay there.→He can't have been staying there.
1.You must drive fast.__________________________
2.He can't be at home__________________________
3.My father must read in his room._________________________
4.Tom can't study hard.______________________
用适当的介词填空.
1.What's the problem about deciding______a holiday.
2.I usually go to work_____bus.
3.Who's going to look_____the garden.
4.He was driving_____60 miles an hour.
5.Susan is waiting_____Helen now.

答案

1.You must have been driving fast.
2.He can't have been at home
3.My father must have been reading in his room
4.Tom can't have been studying hard
即情态动词+V改成情态动词+have been dong
1.on decide on就…做出决定
2.by by+交通方式 乘...
3.around look around四处看看
4.at at...speed/at a speed of以...的速度
5.for wait for等待