The recent earthquakes have caused concern because they happen _____ population centers and have cau

题目简介

The recent earthquakes have caused concern because they happen _____ population centers and have cau

题目详情


The recent earthquakes have caused concern because they happen _____ population centers and have caused huge damage.
A.to be hitB.hittingC.having hitD.to have hit
题型:单选题难度:偏易来源:不详

答案

D

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