—They Shanghai two days ago.—Yes. They for two days.
________we will have an exam(测试) next week,_____ we have to go over our lessons.
Oh, these shoes are so beautiful! Can I ________?
_________ the bridge, you can see the hospital on your right.
I’m looking forward to _________ Beijing.This summer holiday my family are going to_____ the Oympic Sports Center.
My friend Tom is always ready _____ others. He often teaches______ English.