Graduation is a good time to thank those who have helped you _____ the tough years[ ]

Will you come over to Beijing for the may Day holiday? —I’d like to, but my family the 2010 World Expo in Shanghai during the holiday

The artist will not paint people or animals but he will paint anything ________ .

Most of us see a doctor ______ when we geta cold or something.This won’t cost us a lot.

How much are these shoes _________ twenty dollars.