问题

You must be careful when ___ on the highway.

A:you driving
B:are driving
C:driving
D:you were driving

正确答案是：

同类题型

Even though _______ ShanghaiInternational Film Festival has only existed a short time, it has _______ goodreputation worldwide.

My family always have a party the evening of Christmas.

从bewithin3．practiced

It seems that Dave likes playing basketball very much.- Yes. He plays almost every day it rains heavily.

The number of people who were killed______more than 400,000. A great number of them ______the old people and children.[ ]