题目内容

After Bret suffered severe brain damage in the early morning, he spent the entire weekend under close __________ in hospital.

A. examination
B. investigation
C. observation
D. consideration

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At the end of eight months, it was almost with reluctance that I left these friends and _________ insects.

A. turn to
B. turn up
C. turn out
D. turn on

Albert Einstein said, “Only two things are __________: the universe and human stupidity; and I’m not sure about the former.”

A. infinite
B. chronic
C. destructive
D. infectious

We need to ______ the forest.

A. serve
B. preserve
C. deserve
D. observe

We need to ________ the important points when taking down notes.

A. highlight
B. enhance
C. gain
D. boost

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