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题库 / Prep2007E1-SC-24
Employment costs rose 2.8 percent in the 12 months that ended in September, slightly less than they did in the year that ended in the previous quarter.
less than they did
less than it did
less than they were
lower than
lower than they were
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1) the number is lower than the other number
2) the task has a priority lower than that task
3) the ceiling in my new house is lower than that in my old house.
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