单项选择题

I don’t doubt （）he’s a brilliant scientist, but can he teach

A. why
B. that
C. whether
D. if

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Mike said that the house was （） expensive for him.

A. very much
B. so much
C. far too
D. about
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The machine （）old cars into blocks of scrap metal.

A. compresses
B. delivers
C. confines
D. composes
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