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______ Tom ______ Mary can help me,for they are very busy.A.Both; and B.Either; or C.Whether; or D.Neither; nor

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______ Tom ______ Mary can help me,for they are very busy.
A.Both; and B.Either; or C.Whether; or D.Neither; nor
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答案和解析
D.Neither; nor
因为忙,都不能帮