Who saw it ______ at that time?
| A．happen | B．happened | C．happens | D．to happen |
---I often study English _____listening to tapes.How about you?
----I always watch English movies ___TV.
| A．in,in | B．on,on | C．by,in | D．by,on |
---Do you know ______famous tennis player named Li Na?
---Yes. She plays tennis well.
| A．a | B．an | C．the | D．/ |
If you _________ something that you have done, you wish that you had not done it.
A. regret B. expect C. like
It is __________ for us to do exercises regularly. It is good for our health.
A. tiring B. necessary C. the worst
The contestant was so nervous that he ______ suddenly, and then fell down on the floor.
A. died out B. put out C. passed out