He will be back __ a few weeks.A.in B.on C.for D.at选择正确答案.
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He will be back __ a few weeks.A.in B.on C.for D.at
选择正确答案.
A.in
A,in 表示未来的期限
He will be back __ a few weeks.A.in B.on C.for D.at
选择正确答案.
A.in
A,in 表示未来的期限