______ our return, all the students burst into cheers for our excellent performances.
| A．At | B．In | C．On | D．With |
The trees must _______three times a week.
| A．water | B．watering | C．be watered | D．waters |
There ________a football match in our school this afternoon.
| A．are going to have | B．is going to have | C．are going to be | D．is going to be |
. --Can I help you, sir? --Yes, I bought the radio here yesterday, but it ________.
| A．didn't work | B．won' t work | C．can' t work | D．doesn't work |
While she _________ TV in the sitting room, the bell________.
| A．watches, rings | B．is watching, rang | C．was watching, rang | D．watched, was ringing |
.--Can I help you? --Yes. I bought this computer here yesterday, ,but it ______ now.
| A．didn't work | B．won't work | C．can’t work | D．doesn't work |