Companies are relying on temporary workers and outside consulting firms，which can be easily （）during tough times.

The rising investment that sparked growth in Asia was predicated（）ever-rising exports.

A.on the assumption of
B.on a line with
C.on account of
D.on behalf of

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My figuring was wrong because I（）one tiny point.

A.overviewed
B.outlooked
C.overlooked
D.oversaw

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