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單項(xiàng)選擇題

I am not used to speaking（） public.

A.in
B.at
C.on
D.to

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單項(xiàng)選擇題

I'd like to take（）of this opportunity to thank all of you for your efforts.

A.profit
B.benefit
C.occasion
D.advantage

單項(xiàng)選擇題

Running your own business usually（）working long hours.

A.includes
B.involves
C.contains
D.comprises

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