15. Be careful not to get punished. Father _______ his patience.

　 A. is running out　　 B. has used up　　 C. is running out of　　 D. is using up

14. We have got plenty of time left to get the work finished so _______. Don’t go too hard at it.

A. take it easy　　 B. take time　　 C. don’t hurry　　 D. don’t worry

13. As it is summer holiday, we have to adopt a _______ timetable for school activities.

　 A. changeable　　 B. movable　　 C. flexible　　 D. variable　

12. A person is said to be unreliable if what he does is _______ what he says.

　 A. on the contrary to　 B. contradictory to　 C. appropriate to　 D. appealing to

11. Instructions for homework have to be ______ so that every student knows clearly what is to do after class.

　 A. specific　　 B. generous　　 C. general　　 D. detail

10. The thief trapped in the house ________ from the window but the fear of falling to his death scared him not to do so.

　 A. managed to escape　　 B. tried to run　　 C. attempted to escape　 D. tried escaping

9.　 If penicillin is taken by or injected to a person who is _______ it, the result will be fatal.

A. sensible to　　 B. allergic to　　 C. addicted to　　 D. delicate to

8.　 If what you are teaching doesn’t ______ to your students, your students will gradually lose interest in it.

A. attract　　 B. inspire　　 C. appeal　　 D. interest

7.　 We are not responsible for the breaking of _____ items in the post so you have to be careful when packing them up.

A. delicate　　　 B. weak　　　 C. fragrant　　 D. fragile

6.　 Cloning humans has been _____ in the science world for many years and it is likely that it will continue to be.

A. ridiculous　　 B. contemporary　　 C. controversial　 D. contradictory