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题目内容
(甘肃开放大学 商务英语)
_______ Tom ________ Mary can help me, for they are very busy.
A.
Either;or
B.
Neither;nor
C.
Both;and
D.
whether;or
A.
Either;or
B.
Neither;nor
C.
Both;and
D.
whether;or
参考答案