I’m sorry I______ my exercise book at home. ——Don’t forget ______it to school tomorrow, please.

Who has opened the door? —I think it __ be Lin Tao. He’s always the first to get here.

There are a number of cases _______ family members or friends quarrel with each other and become enemies.

We have two rooms ________, but I can’t decide ___________.

ng has retired from the NBA, the pleasure we have got bywatching him play basketball at home and abroad will last long