问题
选择题
－Where is Ben?
－He _______ to the teachers' office. He will be back soon.[ ]
A. go
B. has gone
C. has been
答案
答案：B
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－Where is Ben?
－He _______ to the teachers' office. He will be back soon.[ ]
A. go
B. has gone
C. has been
答案：B
