问题
选择题
—Who's the man talking to our teacher?
—A professor __________ a visit to our school.[ ]
A. pays
B.is paying
C. has paid
D. paying
答案
答案：D
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—Who's the man talking to our teacher?
—A professor __________ a visit to our school.[ ]
A. pays
B.is paying
C. has paid
D. paying
答案：D