aren't有关试题答案解析

考点：情态动词的使用

题型：单项选择-四个选项 | 难度：适中

1 . I ________ go out to play with you because I have much homework to do.

A．isn’t

B．aren’t

C．can't

D．doesn’t

考点：条件句中的否定结构

题型：单词拼写-适当形式 | 难度：适中

2 . If you ____ (not be) careful, you may miss the important details in the story.