题目内容
【题目】— ________ Tom and his mother often watch tennis games on TV?— Yes, they ________.
A.Do; are
B.Are; are
C.Does; does
D.Do; do
【答案】D
【解析】句意：汤姆和他的妈妈经常在电视上看网球比赛吗？是的。本题的时态为一般现在时，主语为 Tom and his mother是复数，不能用第三人称单数does，和be单数形式is，句子中有实意动词作谓语，此句为一般疑问句，上文用do提问应用do回答,所以答案是D
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