M8013是产生周期为()(1s/1min)时钟脉冲的特殊辅助继电器。
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Miss Smith's assistant enjoys ______ for her although she treats him very strictly.
A. work
B. working
C. to work
D. Worked
Have you ever heard about the meeting ______ tomorrow?
A. held
B. to be held
C. being held
D. holding
______ it was late, he was still working in the office.
A. Even though
B. As though
C. As if
Despite
We are _____ to hear the _____ story.
A. excited; exciting
B. exciting; excited
C. excited; excited
D. exciting; exciting