问题
选择题
Professor Wang , _______ for his informative lectures, was warmly received by his
students.
A．knowing
B．known
C．to be known
D．having known
答案
答案：B
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Professor Wang , _______ for his informative lectures, was warmly received by his
students.
A．knowing
B．known
C．to be known
D．having known
答案：B