Is it ________ for the building ________ in a month?

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A．possible…to he designed

B．probable…being designed

C．able…to be designed

D．possible…to design

He said he couldn't ________ three days away from work.

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The scientist ________ in my last letter will come to visit our school.

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It is necessary that he ________ there for three days.

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He found Jane ________ at the piano.

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Why don't you put the meat in the fridge? It will __________ fresh for several days.

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Possibly this person died without anyone ________ where the coins were hidden.

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They started off at once ________ the missing girl.

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After the new technique was introduced, the factory produced ________ tractors in 1988 as the year before.

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Helen ________ her keys in the office so she had to wait until her husband ________ home.

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