Maryhasn'tdecidedwheth

发布时间：2020-07-25 13:52:10

Mary hasn't decided whether to take up tennis, basketball, or ___.A.beginning to play footballB.begin to play footballC.beginning playing footballD.to beginning playing football

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B解析连词词组whether..or连两个不定式 to take up和begin两者并列。须保持形式一致，D项表达方式错误。
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