题目内容
【题目】What are they doing? ( )
A. Yang Ming is watching them.
B. Mary is watching them.
C. Yang Ming and Mary are watching them.
【答案】C
【解析】
略
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题目内容
【题目】What are they doing? ( )
A. Yang Ming is watching them.
B. Mary is watching them.
C. Yang Ming and Mary are watching them.
【答案】C
【解析】
略