The expert offered us another piece of advice,_____of great help to our program.
| A．I think it is |
| B．I think which is |
| C．which I think it is |
| D．which I think is |
I don't think the experiment is _____ failure. At least we have got _____ experience for our
future work on _____ nature.
| A．/; /; / | B．a; /; the | C．a; /; / | D．/; the; / |
---- 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 |