单项选择题

He ______ in this company since he graduated from Andong Technical College ten years ago.

A．worked
B．has been working
C．had worked
D．was working
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单项选择题
______ tired of Tom's all-talk-no-action attitude, Julia decided to do the job all by herself.
A．To get
B．To have got
C．Getting
D．Have got
单项选择题
The professor, ______ as a splendid speaker, was warmly received by the students.
A．known
B．to be known
C．knowing
D．having known
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