摘要： -- What time do you expect me back, Mum? -- Say, half an hour. A. at B. before C. in D. for
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-- What time do you expect me back, Mum?
-- Say, ______half an hour.
A. at B. before C. in D. for
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— What time do you expect me back, Mum?
— Say, _____ half an hour.
— Say, _____ half an hour.
[ ]
A. at
B. before
C. in
D. for
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B. before
C. in
D. for