We _____ the work on time without your help.
| A．hadn’t had finished | B．didn’t have finished |
| C．couldn’t have finished | D．can’t have finished |
Try she might, Sue couldn’t get the door open.(2011 .全国I)
A. if
B when
C. since
D. as
--- Is everyone here?
--- Not yet … Look, there the rest of our guests! (2010 … 江苏)
| A．come |
| B．comes |
| C．is coming |
| D．are coming |
We laugh at jokes, but seldom about how they work.
（2010 .四川）
| A．we think |
| B．think we |
| C．we do think |
| D．do we think |
Only when he apologizes for his rudeness to him again.(2013．江西)
| A．I will speak |
| B．will I speak |
| C．do I speak |
| D．I speak |
Not once to Michael that he could one day become a top student in his class. (2013 .湖南)
| A．occurred it |
| B．it did occur |
| C．it occurred |
| D．did it occur |