－It looks heavy. Can I give you a hand?
－ .
| A．No, thanks | B．Yes, my pleasure |
| C．No, never mind | D．Yes, I do |
Scientists say it will be five or six years __________ it is possible to test this medicine on humans.
| A．after | B．before | C．since | D．when |
Some people do not have enough to eat while some others throw away food just__________ its poor taste.
| A．because of | B．according to | C．instead of | D．in spite of |
Li Hua has __________ good knowledge of the English language and this will be an advantage over others in finding __________ proper job.
| A．a, the | B．a, a | C．/, a | D．/, the |
- Well, that is one of ________ most expensive hotels in town, I'm afraid.
- Do you mean we'd better choose________ cheaper one?
| A．a; a | B．the; a | C．a; the | D．the; the |
It is bad manners to ________an invitation without a reason.
| A．break down | B．settle down | C．turn down | D．calm down |