The machine has been used for several years. It needs______.
| A．to repair | B．repaired | C．repair | D．repairing |
The water will be further polluted unless some measures______.
| A．will be taken | B．are taken | C．were taken | D．had been taken |
---Excuse me, sir, is this seat taken?
---_______.
| A．Sure, you may take it | B．Certainly. Help yourself |
| C．No. I don’t think so | D．No. I don’t hope so |
--- Do you think Bob will attend the meeting this afternoon?
--- ______．
| A．I hope not | B．I don’t hope so | C．I don’t think it | D．I hope he would |
The committee asked for these suggestions to be ______ on paper, so that they might study them further．
| A．brought down | B．handed down | C．laid down | D．put down |
He is always ready to help others, seldom, ______, refusing them when they turn to him．
| A．if never | B．if ever | C．if not | D．if any |