People have planted a lot of trees and grass in order to ____ wind and sand in the desert．

Grades would______from one or two，for outstanding or excellent，to six or seven，for poor or very poor.

The girl _____ to be a good dancer if she is well trained in an art school.

It is a great pity that the band which Jack was a member of ____ after 26 years of playing together on stage. 

      ! The rescue workers are coming.