问题
选择题
Mr Jones, a professor, ___________ for his excellent lectures, is popular with his students.
A．known
B．knowing
C．to be known
D．having known
答案
答案：A
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Mr Jones, a professor, ___________ for his excellent lectures, is popular with his students.
A．known
B．knowing
C．to be known
D．having known
答案：A
