单项选择题

Frank is working late again. This is the first time this week he’s had to study late, （）

A. isn’t he
B. hasn’t it
C. hasn’t he
D. isn’t it

<上一题目录下一题>

热门试题

单项选择题

He is good at English, （）we all know.

A. that
B. as
C. whom
D. what

单项选择题

This is （）the river has been polluted.

A. what
B. why
C. that
D. whether

相关试题