摘要： - When your brother back? - About half an hour ago. A. did; come B. had; come C. do; come D. have; come
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—When _____ your brother _____ back?
—About half an hour ago.
—About half an hour ago.
[ ]
A. did; come
B. had; come
C. do; come
D. have; come
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B. had; come
C. do; come
D. have; come