11. (　　)tired after a hard work, she fell into bed and went straight to sleep.

　　A.Feh

　　B.Feeling

　　C.Being felt

　　D.To feel

　　12.He opened the door and let himself in quietly (　　)not to wake the family.

　　A.because

　　B.so as

　　C.so that

　　D.despite

　　13.Peter wishes that he (　　)law instead of literature when he was in college.

　　A.could study

　　B.studied

　　C.had studied

　　D.would study

　　14. (　　)was unimportant.

　　A.Whether he enjoyed our dinner or not

　　B.No matter how he enjoyed our dinner

　　C.If he enjoyed our dinner

　　D.What he enjoyed our dinner

　　15.Selfish people often take (　　)of other people's kindness.

　　A. advantage

　　B. care

　　C. use

　　D. profit

　　16.It is desirable that he (　　).

　　A.gives up trying

　　B.give up trying

　　C.would give up trying

　　D.is going to give up trying

　　17.Young (　　)he is, he knows what is the right thing to do.

　　A.that

　　B.as

　　C. although

　　D.however

　　18.Fortunately, the demonstration (　　)to be quite peaceful.

　　A.turned in

　　B.tumed out

　　C.showed off

　　D.showed up

　　19. (　　)was unimportant.

　　A.Whether he enjoyed our dinner or not

　　B.No matter how he enjoyed our dinner

　　C.If he enjoyed our dinner

　　D.What he enjoyed our dinner

　　20.It is not that I do not like plays.The reason why I did not go to the theater last night was that I could not (　　)the time.

　　A. offer

　　B.leave

　　C. afford

　　D. manage