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28、Where was ______ you meet with the famous scientist? 

A. it that           B. it                C. the place            D. there

27、I couldn’t do my homework with all that noise ______.

A. going on         B. goes on             C. went on          D. to go on

26、You can hardly imagine the difficulty the woman had ________ her children.

A. brought up         B. to bring up         C. bringing up          D. to have brought up

25、All possible means ______ been taken to stop the river _______. 

A. have; polluting                  B. has; polluted        

C. has; polluting                   D. have; being polluted

24、— What’s the matter with Mary ?

— She wasn’t invited to the ball, but she still _______.              

A. hopes so          B. hopes that         C. hopes to            D. hopes it

23、I was about to start _________ it began to rain.

A. while              B. when               C. as                 D. however

22、E-mail, as well as telephones, ______ an important part in daily communication.

A. is playing            B. have played       C. are playing          D. play

21、The girl was last seen playing _______ guitar by ______ lake.

A. the; /                 B. /; the               C. the; the                D. /; /

20、Do not start a book unless you can see from the first few pages that it is ______ you can easily read and understand.

A. that             B. one               C. the one             D. a one

19、There is a poisonous chemical in milk. Have you considered _______ it?

A. to change                B. changed                  C. changing             D. being changed