Tony is said________ to New York，and now he is studying medicine in a famous college in America.

Please stand when you answer the teacher’s questions in class.[ ]

Would you like to go and see avatar with me tonight?—Thank you very much, but I ___ it already.

I remember I have been here before. There used to be a church near the park, _______?

This kind of CD-ROM is very popular. Why not buy one before it________ ?