When did you come to this school?—_________ 2001.[ ]

To help a friend solve the problem troubling him,.

I’m expecting a pet dog for long，but mom has no time to buy _________ for me．

Shanghai is the city ______ the 2010 world Expo is held. –So it is a city____ most of us want to vist this summer.

If you are invited to any special occasion such as a wedding or a celebration, you’ll have to be ____ dressed.