We've just moved into a bigger house and there's a lot to do. Let's __________ it.
| A．keep up with | B．do away with |
| C．get down to | D．look forward to |
．I would love ______ to the party last night，but l had to work extra hours to finish a report．
| A．to go | B．to have gone | C．going | D．having gone |
．The patient was warned ______ only food after the operation．
| A．to eat not | B．eating not | C．not to eat | D．not eating |
.We have been told that under no circumstances_______ the office telephone for personal affairs.
| A．may we use | B．we can use | C．we could use | D．did we use |
.Because of the heavy sandstorm, we had to put off the visit until tomorrow to the exhibition of painting _____in the nearby city.
| A．to hold | B．held | C．holding | D．being held |
.He wondered if he could slip out of the lecture hall without anyone______.
| A．noticing | B．noticed | C．to notice | D．being noticed |