题干
－Hello, may I speak to Mr. Smith?
－Sorry, he isn't in. He__________ the office.
A：has been to
B：has gone to
C：has been away
答案(点此获取答案解析）
B
－Hello, may I speak to Mr. Smith?
－Sorry, he isn't in. He__________ the office.
A：has been to
B：has gone to
C：has been away
, 那么集合
为（ ）
