At the class meeting, he made two suggestions, ______ were of great value.
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A
all of them
B
all of which
C
both of them
D
both of which
推荐题目
The old lady had a son and two daughters，________treated her well，which made her very sad.
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A
no one of whom
B
none of whom
C
neither of them
D
none of them
The clever boy made a hole in the wall, ________ he could see what was going on inside the building.
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A
on which
B
at which
C
through which
D
in which
Alice received an invitation from her boss, ________ came as a surprise.
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A
it
B
that
C
which
D
he