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试题详情及答案解析
How _______ his grandparents? - They're very well.
A am              B. was
C. is             D. are
答案:D
试题分析:句意:-他的祖父母怎么样?-他们身体非常好。主语是复数,根据答语可知是一般现在时,故选D。
考点:考查主谓一致的用法。