If it was not an accident, he must have done it .
The teacher told the students that there _______a meeting at three o’clock.
His family don’t like the second-hand car, ________ is very high.
— Why does she always ask you for help? — There is no one else ________, is there?
I ________ walking in the garden ________ watching TV in the room.
Only when you told me about it ________ what a silly thing I had done.