_____, Mr. Thompson left the room.
| A．Drinking the coffee | B．Had drunk the coffee |
| C．After drank the coffee | D．Having drunk the coffee |
---Why don’t you use the knife?
---It needs ___________________.
| A．sharpen | B．being sharpened | C．sharpening | D．to sharpen |
The lady said she would buy a gift for her daughter with the _______.
| A．20 dollars remained | B．remaining 20 dollars |
| C．remained 20 dollars | D．20 dollars to remain |
---Where _______ my book ? I can't see it anywhere.
--- I _______ it on this table . But now it's gone .
A were you putting ; have put B. had you put ; was putting
C have you put ; put D. did you put ; have put
___we admit that there are still some problems about NMET, we don’t mean that it’s of no use.
| A．While | B．Until | C．As | D．Unless |
Mr. Smith found that gas from the pipe when he came back because we forgot to switch off. But at last we were lucky to escape .
| A．escaped, being punished | B．was escaping, being punished |
| C．escaped, punishment | D．was escaping, punishing |