________ the program，they have to stay there for another two weeks.A．Not complet

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________ the program，they have to stay there for another two weeks.

A．Not completing	B．Not completed
C．Not having completed	D．Having not completed

答案

解析

答案　C

举一反三

The country has already sent up three unmanned spacecraft，the most recent ________ at the end of last March.

A．has been launched	B．having been launched
C．being launched	D．to be launched

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—Come on，please give me some ideas about the project.
—Sorry.With so much work ________ my mind，I almost break down.

A．filled

B．filling

C．to fill

D．being filled

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John received an invitation to dinner，and with his work ________，he gladly accepted it.

A．finished	B．finishing
C．having finished	D．was finished

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________ as the “first lady of speech”，Dr, Lillian Glass is recognized as one of the world"s leading experts on communication skills.

A．Knowing	B．Having known
C．Known	D．To be known

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—Why do you look sad?
—There are so many problems ________.

A．remaining to settle	B．remained settling
C．remaining to be settled	D．remained to be settled

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