题目内容

They have started an investigation, _____ are being kept secret.

A. whose detail
B. whose the details
C. the details of which
D. the detail of it

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Have you ever asked him the reason _____ may explain his absence?

A. why
B. for which
C. which
D. what

Mr Seal has changed a lot, and many of his friends say that he is not the same man _____.

A. like he was
B. as he used to be
C. as he was used to
D. like what he was

There were two rooms in the beach house, _____ served as a kitchen.

A. the smaller of them
B. the smallest of which
C. the smaller of which
D. smallest of which

Mont Blanc _____ we visited last summer, is the highest mountain in Europe.

A. where
B. that
C. which
D. , which

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