You know, the weather is not very good. Is there any possibility the flight would be put off?
| A．whether | B．when | C．why | D．that |
A man does not know the difficulty of anything_________ he does it personally.
| A．although | B．if | C．because | D．unless |
There is a _________ of 1000 dollars for the return
| A．reward | B．prize | C．thank | D．prsise |
Isn't it very kind __________ your parents to do that for us?
A. for B to C. about D. of
--What was the party like?
--Wonderful. It is years_____________ I enjoyed myself so much.
| A．before | B．that | C．after | D．since |
I caught the last bus from town, but Harry came home___________ that night.
| A．very late | B．even later | C．the same late | D．the last one |