—Which side can I sit on the boat?
—If you sit still,you can sit on ________.
| A．neither side | B．every side |
| C．both sides | D．either side |
If only you __________ him what I said! Everything would have been all right.
| A．didn't tell | B．hadn't told | C．would not tell | D．would have not told |
You'll succeed __________because you are always working hard.
| A．on time | B．in time | C．at times | D．at the time |
A __________snow promises a good harvest next year.
| A．actually | B．timely | C．greatly | D．gently |
—The cars give off a great deal of waste gas into streets. —Yes. But I'm sure something will be done to __________air pollution.
| A．reduce | B．remove | C．collect | D．warn |
The performance of the host，__________ to please the audience and draw their attention, was greeted with a cold silence, however.
| A．had intended | B．intended | C．intending | D．to intend |