The cost of living in big cities ________ steadily for many years，and it has led

题干

The cost of living in big cities ________ steadily for many years，and it has led some youths to drop out of the big city race.

A．is climbing	B．is being climbed
C．has been climbing	D．has been climbed

上一题下一题 0.4难度单项选择更新时间:2019-06-03 09:36:09

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