题目内容
He thought I was talking about his son, ____in fact I was talking about mine.
- A.when
- B.while
- C.however
- D.which
B
while表示转折“然而”是连词,however 表达该意时,其后常用逗号与句子隔开。
while表示转折“然而”是连词,however 表达该意时,其后常用逗号与句子隔开。
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