_____, Carolina couldn’t get the door open.
| A．Try as she might | B．As she might try |
| C．She might as try | D．Might she as try |
He’s got himself into a dangerous situation _____ he is likely to lose control over the plane.
| A．where | B．which | C．while | D．why |
I have waited for her since _____.
| A．two hours ago | B．two hours before |
| C．two hours | D．two hour’s time |
We were all surprised when he made it clear that he _____ office soon.
| A．leaves | B．would leave | C．left | D．had left |
30. --- I’d rather have some wine , if you don’t mind.
--- ____ .
| A．No , you’d better not | B．Not at all , anything you want |
| C．Thank you , all the same | D．Yes, but not good |
29. --- David has made great progress recently .
--- ____, and ____ .
| A．So he has , so you have | B．So he has , so have you |
| C．So has he , so have you | D．So has he , so you have |