It was April 29,2011 _______ Prince William and Kate Middleton walked into the palace hall of the wedding ceremony.

     A. that                B. when        C. since            D. before

Please do me a favor ---______ my friend Mr. Smith to Youth Theater at 7:30 tonight.

A. to invite            B. inviting     C. invite           D. invited

---- I' m surprised to hear that Sue and Paul have __   .

----So am I. They seemed very happy together when I last saw them.

A. broken up            B. finished up      C. divided up       D. closed up

For a moment nothing happened, then        all shouting together.

A. voices had come                      B. did voices come 

C. voices would come                    D. came voices

We are at your service. Don’t           to turn to us if you have any further problems.

A. beg              B. hesitate     C. desire           D. seek

The lack of eco-friendly habits among the public is thought to be a major _____of global climate change.

A. cause                B. result           C. warning      D. reflection

    ___   not to miss the flight at 15:20, the manager set out for the airport in a hurry.

A. Reminding         B. Reminded     C. To remind     D. Having reminded[

She has a gift for creating an atmosphere for her students ____allows them to communicate freely with each other.

 A. which           B. where            C. what         D. who

I think you should go back to your     plan, which is much more practical than the present one．

A. random           B. abstract     C. original     D. ridiculous

It is not I but Tom and his wife that ______ for the car accident.

A. am to blame          B. are to blame   C. am to be blamed    D. are to be blamed