It is vital that every piece of equipment ________ before the experiment.
| A．is checked | B．will be checked |
| C．be checked | D．must be checked |
- Jack is in a bad mood because he failed in yesterday’s exam.
- __________? As far as I know, he is doing fine work at school.
| A．How come | B．So what |
| C．What’s it all about | D．Have you got that |
The words of early blues songs often __________ a single line repeated two or three times.
| A．made up of | B．consisted of | C．made up | D．consisted |
- You look exhausted!
- I __________ tennis with my friend all the morning.
| A．played | B．had played | C．have been playing | D．will play |
She __________ an old friend of hers yesterday while she was shopping at the department store.
| A．turned down | B．dealt with | C．took after | D．came across |
The last time we had great fun was __________ we were visiting the Water Park.
| A．where | B．how | C．when | D．why |