题目内容
The children on the train set ______ from Xi'an ______ Yanan ______ their first pleasant trip.
[ ]
A. off, at, for B. to, for, at C. in, for, at D. off, to, on
答案:D
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题目内容
The children on the train set ______ from Xi'an ______ Yanan ______ their first pleasant trip.
[ ]
A. off, at, for B. to, for, at C. in, for, at D. off, to, on