单项选择题

To work ______ with the machine, you must read the instructions carefully.

A. firstly
B. naturally
C. efficiently
D. generally
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单项选择题
Hardly ______ at the office when the telephone rang.
A. I arrived
B. I had arrived
C. did I arrive
D. had I arrived
单项选择题
A. Hold on, please. B. It’s interesting. C. That’s nothing. D. He’s all fight.
A. Hold on, please. B. It’s interesting.
C. That’s nothing. D. He’s all fight.
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