Dust ________ in a room if we do not clean the room regularly.
| A．accomplishes | B．accumulates |
| C．accommodates | D．achieves |
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 |
If only I my watch!
| A．hadn’t lost |
| B．haven’t lost |
| C．didn’t lost |
| D．don’t lose |
--- What will you do during the summer holiday?
--- I don’t know, but it’s high time something.
| A．I’m deciding |
| B．I’II decide |
| C．I decided |
| D．I decide |
I’m glad I went over all my notes, otherwise .
| A．I may have failed |
| B．I’d fail |
| C．I’d have failed |
| D．I’II have failed |
--- Have you ever been to Beijing?
--- No, but I wish I .
| A．have |
| B．will |
| C．do |
| D．had |