问题

I met my teacher _____ I was walking in the street, but I didn’t say hello to him.

A:before
B:after
C:until
D:while;

正确答案是：

同类题型

My father _____ to Beijing next week.

I’m sorry to hear that your mom is ________.—Luckily, she is not down like other _______ people in the hospital.

Our government is doing _______ to protect the environment. -That’s great.

23The class is unusual_______ the students are all over fifty and none of them attended the middle school when they were young

－We need a person badly to think up such an idea－______the new comer have a try