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— Did you hear about Zhang Lili who saved the kids from being run over by a school bus?

— Yes. What do you think most people _____ if they were in a similar situation?

    A. will do                                  B. will have done.     

C. would do                                 D. would have done

—Well，I do think the ipod is smart, convenient and intelligent．

—________．

A．So it is                          B．So is it

C．So does it                        D．So it does

－It’s necessary to limit the speed of electric bikes.

－Yes, most riders of electric bikes in China        40-50 kilometers per hour often ignore red lights,        the risk of traffic accidents.

 A. reaching; increase               B. reach; increase

C. to reach; to increase                D. reaching; increasing

Mistakes don’t just happen; they occur for a reason. Find out the reason, and then making the mistake becomes ______.

A. favorable        B. precious          C. essential      D. worthwhile

US President Barack Obama ________ a national speech at the 10th anniversary of 9/11 terror attacks．

A．a(chǎn)ddressed                     B．delivered

C．spoke                         D．recited

Jack wasn’t saying anything，but the teacher smiled at him ________he had done something very clever．

A．a(chǎn)s if                             B．in case

C．while                             D．though

Saving and recycling are long-term projects _______ determination matters a great deal.

A. that                 B. which              C. whose               D. where

—China is developing rapidly.

—Yes, to make our country more prosperous, we should firmly        the principle of scientific development.

   A. contribute to     B. subscribe to         C. stick to         D. turn to

Teachers have to constantly update their knowledge in order to maintain their professional ________．

A．consequence                    B．independence

C．competence                        D．intelligence

—Mom, today I received a message telling me to send money to the account.

—Delete it. It’s a trick. Many a person ________ by such tricks.

A. have been cheated　　　              B. were cheated    

C. has been cheated　　　                D. was cheated