It wasn’t until he came back _____ he knew the police were looking for him.
______ of the land in Jinhua No. 1 High School _______ covered with trees and grass.
—— How was she ?—— Terrible. She was shocked ______ what happened to her son.
There aren’t enough balls for ________; you have to share them.
In the early days of radio, those who reported the news were ________ to speak with standard dialects.
—— Jack, go and clean the blackboard.——Why ______? I’m not on duty today.