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【单选题】

Look out! Don’t get close to the house________the roof is under repair.

A.
whose
B.
of which
C.
which
D.
what
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参考解析:
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举一反三

【单选题】Badly _____, the water is unfit _____.[ ]

A.
polluting; to drink
B.
being polluted; to be drunk
C.
polluted; to drink
D.
pollution; drinking