单项选择题

There are two kinds of computers (there), both (of them) are (widely) (used) today.

A．there
B．of them
C．widely
D．used
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单项选择题
(For several years now), the student body (is attempting) to gain (more) influence (over) university policies.
A．For several years now
B．is attempting
C．more
D．over
单项选择题
Mary was (surprised to) realize that it was (us), her old (school friends), (calling) her from Paris.
A．surprised to
B．us
C．school friends
D．calling
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