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單項選擇題

Therefore, other things（）equal, the number of workers that employers want decreases.

A.is
B.are
C.being
D.having

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單項選擇題

There is（）water in the glass, is there?

A.a few
B.not
C.few
D.little

單項選擇題

There have been many（）in their marriage but they still love each other.

A.right and wrong
B.back and forth
C.ups and downs
D.right and left

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