．---I give up. It’s too hard.
---Really? I__________you could make it through.
| A．think | B．thought | C．have thought | D．am thinking |
.
．----- I’ve never found a better job．
----- _________．
| A．I don’t think so | B．Too bad | C．Congratulations | D．Don’t worry |
.
It requires _________ your willingness to do the job．It also requires a lot of mental effort．
| A．less than | B．more than | C．fewer than | D．nothing than |
.
When ___ help, one says “Thank you” while when _________ help, one asks “Can I help you?”
| A．offered; offered | B．offering; offered |
| C．offering; offering | D．offered; offering |
.
The key point is not who said the words, _________ they are true or not．
| A．but whether | B．and whether | C．but how | D．and how |
.
As I know, it is five years since Mary _________ in the south．
| A．lives | B．lived | C．has lived | D．was living |