问题描述：
I am cleaning the room.The room ____ _____ _____.
I am cleaning the room.
The room ____ _____ _____.
He isn't washing the car.
__________________.
When they painting the wall when you visited them?
____ the wall ___ ___ when you visited them?
You ought to mend the bike.
The bike ____ ____ _____ _____.
They can't mend the bike in that shop.
___________________________________.
Must we hand in our exercise-book now?
____ our exercise-book ____ _____ now?
I am cleaning the room.
The room ____ _____ _____.
He isn't washing the car.
__________________.
When they painting the wall when you visited them?
____ the wall ___ ___ when you visited them?
You ought to mend the bike.
The bike ____ ____ _____ _____.
They can't mend the bike in that shop.
___________________________________.
Must we hand in our exercise-book now?
____ our exercise-book ____ _____ now?
问题解答：
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