I’m a little weak in Maths. I don’t know how to improve it. — Why not __________ Daniel for help? He’s very good at it.

Have you seen my toy car, Bill?— It’s ______ my way, so I put it ________.

The temperature now is much higher than______of 100 years ago because of more and more greenhouse gas.

Bill is ___________ classmate. He is a friend of ____________, too.

When the apples______ the tree are red ,you can always see many boys ______ the tree. [ ]