Question

In my opinion, life in the twenty- first century

In my opinion, life in the twenty- first century is much easier than _______.
A. that used to be B. it is used to
C. it was used to D. it used to be

Answer 1

D

追答

it 指代life, used to 后面的实义动词可以省略，但连系动词be不可以省略。

谢谢好评

Answer 2

D
(than)it used to be是比较状语从句，it指上文中的life，used to be表示“过去是”。根据所提供的情景“life in the twenty-first century is much easier than”可判断出表示“以我看来，21世纪的生活比过去容易”。be used to后接动词+ing形式作宾语，表示“习惯于”，其主语一般是表示“人”的名词或代词。

Answer 3

应该是D
In my opinion, life in the twenty-first century is mch easier than it used to be
=>按我的看法，生活在廿一世纪比以前的更容易(方便)