We will go to Tian’anmen Square to watch the raising of national flag if it         tomorrow.

Turn off the water while you         your teeth or washing your hands.

It’s unwise to give a child         he or she wants.

       I am in trouble, my best friend Li Lei always helps me.

— When ______ for Hong Kong, do you know?
— I’m not sure. When he ______, I’ll let you know.

— Will your mother______ you if you______ the English exam?
— Of course not. Because I am trying my best.

______ he came to our school, our teacher was sitting in the meeting room.

Please answer the question in a loud enough voice______ all the class may hear.

—Let’s go fishing if it ______ this weekend.
—But nobody knows if it ______.

The meeting didn't start______ everyone was there.