The professor in the letter is from Shanghai.A. referredB. referred toC. referringD. refer

发布时间：2020-08-16 12:23:00


The professor       in the letter is from Shanghai.
A. referred
B. referred to
C. referring
D. referring to

网友回答

A. referred
(答案→)B. referred to
C. referring
D. referring to
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