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

1.You must have driven fast
2.He can‘t have been at home
3.My father must have read in his room
4.Tom can’t have studied hard
1.on
2.by
3.at
4.at
5.for
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句子
1.You must have driven fast.
2.He can't have been at home.
3.My father must have read in his room.
4.Tom can't have studied hard.
介词
1.on
2.by
3.around
4.at
5.for

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.
1. on
2. by
3. after
4. at
5. for

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._____You must have driven fast._____________________
2.He can't be at home____He can't have been being at home.______________________
3.My father must read in his room.__My father must have read in his room._________________
4.Tom can't study hard.___Tom can't have studied hard.____________________________
用适当的介词填空。
1.What's the problem about deciding__on____a holiday.
2.I usually go to work__by___bus.
3.Who's going to look_around____the garden.
4.He was driving__at___60 miles an hour.
5.Susan is waiting__for___Helen now.

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