We have sweaters _______ all colors _______ ￥50 each. [ ]

Our new house was completely in_______ mess after the party was over.— Don’t worry. We can clean it by_______ means of our robot.

Dad, _____ is my friend , Xiao Hua. –Hello, Xiao Hua.

If you still have any other questions, please ____your hand.

When the school building began to shake,the teachers ran downstairs _____ all the students. The teachers are real heroes. [ ]