问题
Excuse me, is Mr Green in the office?—No. He Singapore for a meeting. He will be back in a few days.
A:have gone to
B:has gone to
C:have been to
D:has been to
B:has gone to
C:have been to
D:has been to
正确答案是：
同类题型
He often gives me some advice.The sentence structure is________.
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