单项选择题

We should（）study hard during our time in the university.

A．all
B．every
C．some
D．any

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热门试题

单项选择题

It was not until（）that（）to prepare his lessons.

A．did his father come in, the boy began
B．did his father come in, did the boy begin
C．his father came in, the boy began
D．his father came in, did the boy begin

单项选择题

Please don't run（）fast.

A．so
B．much
C．fairly
D．more