27. Mobile phones of this kind are different from the others _____ they adopted Bluetooth technology.

　 A. in which　 B. in that　 C. by that　 D. by which

26.The bell______ the end of the period rang and we had to stop our discussion.

A. indicating　 B. indicated　 C. to be indicated　 D. being indicated

25.---I hear John refused to tell the truth and was taken away by the police.

　 --- Where did you _______?

A. pick that up　　 B. put that up　 C. make that up　 D. take that up　

24.---Are all telephone numbers_______ in the directory?　　 --- Yes, all ________ Jane’s.

A. listed; including　　　 　B. listed; included

C. including; includes　　　 D. being listed; being included

23._____ we were worried about was _______ they could manage to control the pollution.

A. That; how　 B. That; 　whether　 　C. What; 　that　 　D. What; whether

22. I hate ____when people shout loudly in public.

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

21. The twins look alike, but they_____ in character.

A. different　　 B. differ　　 C. transform　 D. distinguish