-----Did you find the missing couple in the mountain yesterday?
-------No, but we _ to get in touch with them ever since.
A have tried
B. had tried
C. have been trying
D. had been trying
---- My neighbor plays loud music late at night．
---- ________．You really should talk to him about it．
| A．You’ve got it right | B．It’s a good point |
| C．This is tricky | D．That’s annoying． |
The meeting ________ tomorrow is very important．
| A．held | B．to hold | C．to take place | D．taken place |
Although this ______ sound like a simple task, great care is needed．
| A．must | B．may | C．should | D．shall |
---- The fish soup is delicious．I’d like some more．
---- Sorry．There is ________ left．
| A．none | B．neither | C．no one | D．a little |
---- My key is gone．Have you seen it anywhere?
---- Oh, it is in the room ______ we had a talk last night．
| A．that | B．which | C．where | D．what |