3. Tom ______ to America with his parents. They_____ back in two weeks.( )(本题2.0分) A. have gone; will come B. has gone; will come C. have been; have come D. have been; come
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3. —Mr Hu, can you tell us how to learn math well?
3. —Mr Hu, can you tell us how to learn math well? ( )—Sure. But remember nothin