You’d better try different ways you can think of maths problems. It’s good for you to learn maths well.
He took a plane _____ he would get home early .
We are not sure if it _____ tomorrow . If it _____, we won’t go hiking .
Some of my friends are interested in science, but none of them can tell ________.
______ your English teacher ______ you ?
They were talking about the persons and things _______ they saw in the factory.