问题描述:
Has your mum _____________ your sister recently?
A.seen a letter by B.heard a letter from
C.heard D.heard from
请选择出最佳答案和进行解析,
A.seen a letter by B.heard a letter from
C.heard D.heard from
请选择出最佳答案和进行解析,
问题解答:
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