题目内容

【题目】Tom with his classmatesbasketball on the playground now .
A.are play
B.is playing
C.are playing
D.is play

【答案】B
【解析】句意:汤姆正和他的同班同学在操场上打篮球。此句的主语为Tom,为第三人称单数,with his classmates作状语,根据now判断,时态为现在进行时态,其构成为am/is/are + doing,Tom为第三人称单数,所以答案是B。

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