9. Thieves had broken into pyramids and taken away _____ treasures.
A. priceless B. worthless C. valueless D. useless
8. If you want to see a doctor, you fix a date with him ahead of time. That is common _____ in the USA.
A. rule B. practice C. reality D. sense
7. _______safety, he had some bars put in over his window.
A. To be sure B. Ensuring C. To make sure D. To ensure
6. Cars do cause us some health problems--in fact far more serious _____ than mobile phones do.
A. one B. ones C. it D. those
5. ______from other continents for millions of years, Australia has many plants and animals not found in any other country in the world.
A. Being separated B. Having been separated
C. Having separated D. To be separated
4. ----Dad, why not take me to the Disneyland?
----___________. Now we must live a hard life for weeks.
A. Pardon me B. Forget it C. Go ahead D. Never mind
3. I ______ have written to him because he phoned me shortly afterwards.
A. ought to B. must C. couldn’t D. needn’t
2. ----We want someone to design the new art museum for us.
----_______the young fellow have a try?
A. May B. Will C. Shall D. Need
1. Naturally, after I told her what to do, my daughter _____ go and do the opposite!
A. can B. may C. should D. must
15. Those who fail to meet these r______________ will not be admitted to the university.