The students asked _________________.A．when can they surf the Internet in classB

题干

The students asked _________________.

A．when can they surf the Internet in class

B．when could they surf the Internet in class

C．when they could surf the Internet in class

D．when they can surf the Internet in class

上一题下一题 0.64难度单项选择更新时间:2012-07-16 06:10:20

小学学科试题库

初中学科试题库

高中学科试题库