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UN Secretary-General Ban Ki-moon left for Pakistan this morning， his assistant _________ him there this Friday.
| A．joins | B．joined | C．joining | D．to join |
It’s so wet there that the trees are extremely tall, some ______ over 90 meters.
| A．measuring | B．to measure |
| C．measured | D．measure |
The human body consists of organs, each ____a definite job to do.
| A．Have | B．to have | C．Has | D．having |
Nothing could be done, he_____ absent.
| A．was | B．being | C．to be | D．be |
You have no idea how she finished the relay race________ her foot wounded so much.
| A．for | B．when | C．with | D．while |
—Who______ it be that is knocking at the door?
—It ______ be Father, but I’m not sure.
| A．can; must | B．can; may |
| C．must; can | D．may; must |
We ________ jump to conclusions before we have all the facts.
| A．couldn't | B．mightn't | C．shouldn't | D．mustn't |