A lesson from the terrible drought(干旱) that hit some parts of southwestern China this year is that m

题目简介

A lesson from the terrible drought(干旱) that hit some parts of southwestern China this year is that m

题目详情


A lesson from the terrible drought(干旱) that hit some parts of southwestern China this year is that more anti-drought projects ______ built in the past years.
A.should beB.should not have been
C.ought to have beenD.must be
题型:单选题难度:偏易来源:不详

答案

C

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