—Do you spend a lot of time____ computer?—No, but I spend much time_____ doing my homework.
The chairperson is very modest.He never_________.
This is a new CD ______“Best Friend”.
I don’t know the city. Where can I find ___ good restaurant?.
He is very ______and he always explains things _____us.
---Must I hand in my exercise book now, Mr. Zhao? ---No, you ______. You may give it to me tomorrow.