. ---Professor Wang is said ______ in New York. ---No wonder he knows a lot abou

题干

. ---Professor Wang is said ______ in New York.
---No wonder he knows a lot about America.

A．to study

B．to have studied

C．to be studying

D．that he is studying

上一题下一题 0.85难度单项选择更新时间:2010-06-19 05:04:16

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