In my opinion,life in the twenty-first century is much easier than ________.A.that used to beB.it is

题目简介

In my opinion,life in the twenty-first century is much easier than ________.A.that used to beB.it is

题目详情

In my opinion,life in the twenty-first century is much easier than ________.
A.that used to beB.it is used to
C.it was used toD.it used to be
题型:单选题难度:中档来源:不详

答案

D
表示 “过去常常……”用“used to do”。本题中“be”为连系动词,不是实义动词,不能省略。

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