—Come and join us, Jimmy! ---I’m sorry, but I’m really busy now. If I ________ time, I would certainly go.

If I _______ you, I would say another student could do it better.

—A student in my class said to me, “if I ______our math teacher, I_____ make math learning easier and more interesting instead of giving the kids much homework to do every day.”

If I ____ you, I ____ buy a bike for him.

It’s difficult for the village children to cross the river to get to school. We think a bridge________ over the river