题目内容

Working on an assembly line can be incredibly__________.

A. bored and tired
B. boring and tiring
C. exciting and interesting
D. excited and interested

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The engine seems ________ well.

A. perform
B. to be performed
C. performing
D. to be performing

To ensure your interview is smooth and ___________, follow these five tips.

A. error-free
B. care-free
C. salt-free
D. tax-free

Meanwhile, the rest of us remain _____________ for discrimination and violence.

A. take risk
B. risking
C. at risk
D. to risk

The plan is designed to _________ employees _________ work more efficiently.

A. motivate; to
B. motivate; into
C. motivated; to be
D. motivating; on

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