Who is playing the guitar in the next room?--Mike _.A.is B.does C.are D.do
问题描述：
Who is playing the guitar in the next room?--Mike _.A.is B.does C.are D.do
答
选A
因为前面是进行时态,用的is,所以后面也用is
后一句相当于Mike is (playing the guitar in the next room)
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