单项选择题

Scientists should be kept（）of the latest developments in their research areas.

A. inform
B. informing
C. informed
D. to inform

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Mr. Smith insisted that we（）there for lunch.

A、need stay
B、will stay
C、staying
D、stay
单项选择题
There is no（）that women are playing an important role in the world today.

A、of deny
B、to denying
C、denying
D、of denying
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