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单项选择题

Mother is cooking something in the kitchen. From that familiar smell, I know it ______ be roast beef.

A. might
B. can
C. could
D. must
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热门试题

单项选择题Thank you, Mr. President. I’m very happy to ______ a chance to visit your college.

A. being given
B. be given
C. give
D. have given

单项选择题There was a sharp sound of carts ______.

A. to pass
B. passed
C. passing
D. pass