---______ is the price of your computer ? ---4800 yuan .
----Can I join the English club? ---Sure. Please show ______your school ID card.
Mike is my good friend. He is ________American boy.
—Welcome to Hechi! —____.
—Excuse me. How long can I keep the dictionary? —You canreturn it next Monday.
—I don’t know ____ . —Because he has to look after his mother.