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

A．as if          B．in case      C．while                D．though

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

A．addressed 　　 　B．delivered　　 C．spoke 　　　 D．recited

 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

－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

It is quite natural that my coming late again ________ them very angry.
A. had made     B. would make     C. makes     D. make

 After reading her writing, every teacher came to the ______ that she was a very careful and promising girl.

A. opinion       B. decision         C. impression     D. conclusion

— How do you think I can make up with Johnson?

— Set aside ______ you disagree and try to find ______ you have in common.

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

--Can I ask you a few straightforward questions about yourself?

--No problem. I like______ when people are open and direct.

　 A. that　　　　　 B. this　　　　 C. it　　　　　 D. them

—My family usually holds a big party for my birthday, but I want to try a different way this year．

— 　.

　　　 A．Go ahead．　 B．Come along!　　 C．Like what?　 　 D．So what?

 _______Olympic torch has reportedly stayed alight throughout _____varied extreme weather conditions in a German testing center.

   A. 不填; the             B. The; 不填                C. 不填; an                D. The; a