从下列选项中选择适当的选项补全对话。

Bob：Hi，Bob，junior high school is over．

Lisa：Yeah! _____1_____

Bob：Me，too．But we're supposed to have P．E．to stay healthy．

Lisa：Yeah，you're right．_____2_____

Bob：Of course! He always understands us when we have a problem．I want to be a teacher like him in the future．_____3_____

Lisa：I want to be a reporter．

Bob：_____4_____

Lisa：Because I like meeting and talking with different people．

Bob：_____5_____

Lisa：I hope so!

—I hear Mr. Zhang has gone to Beijing for a meeting.

   —Really? Do you know when he ______?

A. leaves           B. was leaving      C. has left     D. left

--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

—Oh, this is really an old building.
—Do you know when it        ?

—Do you know when we can go back home?

   —Sorry, I don’t. Because of the heavy snow storm, highways have been blocked and flights have been __________.

A. put up            B. put off            C. taken off           D. taken up