--Do you know when the London 2012 Olympic Games will start?

--It will start ________ July 27^th, 2012. You can visit London that summer.

A．at               B．on               C．in               D．for

 —Do you know when the 29th Olympic Games ______?  —Yes, in 2008.

A. hold                                                        B. is held                                           C. was held

Do you know when the underground will _________?

A. get to      B. reach     C. arrive at     D. arrive

—Do you know when the 29th Olympic Games ______?

—Yes, in 2008.

A. hold　　　　　　　　　　　　 B. is held　　　　　　　 C. was held

选择方框内所给词的适当形式填空。（注意词形变化）。（每空一词）

1.How do you study for a test? By _______ with a group.

2.Teenagers should be allowed to choose their _____ clothes.

3.What will you do in your free time? I’ll help to clean up the city _____.

4.Do you know when the _____ was invented? It was invented in 1876.

5.By the time I got outside, the bus had already _____.