Tom, you________leave all your clothes on the floor like this!
| A．wouldn't |
| B．mustn't |
| C．needn't |
| D．may not |
It rained nonstop for ten days , completely_____our holiday.
| A．to ruin | B．ruined | C．having ruined | D．ruining |
．—Without your help, we _____ this task on time.
—My pleasure.
| A．don’t finish | B．will not finish | C．didn’t finish | D．would not have finished |
If he ___ that he ____ to work there, everything would be OK now.
| A．insisted, be sent | B．insisted, was sent | C．had insisted, be sent | D．had insisted, was sent |
.—You ____ have set aside more time to play with our kids.
—I wish I ______, but you know how busy I was.
| A．should, would | B．could, did | C．might, should | D．should, had |
. I supported him in time , otherwise he ______ off the bike .
| A．might fall | B．would fall |
| C．should have fallen | D．would have fallen |