单项选择题

The President of Harvard pioneered the elective system by（）students were able to choose their own courses of study.

A. what
B. whom
C. that
D. which

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单项选择题
She is（）far the most active member in our group.

A. so
B. as
C. by
D. in
单项选择题
He said he（）traveling with his family after the entrance examination.

A. will consider
B. considered
C. has considered
D. would consider
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