题目内容
【题目】They are ______ their email friends.
A.talk about
B.talks about
C.talking about
【答案】C
【解析】句意：他们正在谈他们的邮件朋友。一般进行时态。句意：故动词变为be doing形式，故选C。
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题目内容
【题目】They are ______ their email friends.
A.talk about
B.talks about
C.talking about
【答案】C
【解析】句意：他们正在谈他们的邮件朋友。一般进行时态。句意：故动词变为be doing形式，故选C。