17.(　　 　) -- How did he finish the work?

　 　　　　　　-- I hear that he did it 　　　　　　.

　　　 　　A. in the own　　　 B. on the own　　　 C. of his own　　　　 D. on his own

16.(　　　 ) Yesterday, we had a great time _______ football.

A. to play　　　 B. played　　 C. play　　　 D. playing

15.(　　　 )____ trees we cut down, ________animals　 can　 survive.

　　　　　　　 A.The more, the less　　　　　　　　　 B.The less, the more

　　　　　　　 C.The more, the fewer　　　　　　　　 D.The fewer, the the less

14.(　　　 ) --How many books can I borrow?　　 　--Only one_______.

　　　　　　　 A.at times　　　　 B.at the time　　 C.at one time　　 D.at a time　　　　　

13.(　　　 )Many people want to kill elephants _____their tusks.

　　　　　　　 A.from　　　　　 B.on　　　　 C.at　　　　 D.for

12.(　　　 )All the students are sitting ______in their seats , so it's very_____in the classroom.

　　　　　　　 A.quiet, quiet　　　 B.quietly, quietly　　 C.quietly, quiet　 D.quiet, quietly

11.(　　　 )We couldn't go to the city _________the bad　 weather.

　　　　　　　 A.so that　　　　 B.because of　　　 C.so　　　　 D.but

10.(　　　 )---My brother fell off his bike and hurt himself.　 ---　　　　 　.

A. Don’t worry　　　　 　　B. It doesn’t matter　

C. I’m sorry to hear that　 D. He should be careful

9.(　　　 ) Mrs. Brown made him 　　　　at home.

A. stay　 B. to stay　　 C. staying　　 D. stayed

8.(　　　 )The 　　　　　of living areas makes tigers nowhere to live.

A. lose　　 B. lost　　　 C. losing　　 D. loss