How long ________they_________? —Sorry, I don’t know. But I know that Mr. Chen is going to _______a nurse next month.

I think the poor health will be of your study.[ ]

Help _______ to some fruits, boys and girls.

When I entered the classroom, _______ my surprise, all of the students stood up quickly.[ ]

________ is from Kaifeng to Zhengzhou?—about 70 KM. [ ]