Please throw the food away. It smells .

I fell off my bicycle and broke my leg yesterday．—Is that ____ you drank too much？

Many experts hold the view ____ teachers’ development is _____the key to better education lies.

Sandy does not have much time to play tennis. She_____ plays tennis.

Which magazine do you like better, Crazy Reading or Teen’s Space—I like ______ of them. They are useful for English lessons.