B. never to have broken

　　C. never to be broken

　　D. never to be breaking

　　7. If you, the special one in the world, want to show your ______ personality, this T-shirt is exactly what you are looking for.

　　A. calm

　　B. unique

　　C. straight

　　D. constant

　　8. The wide spread of super hybrid rice around the world ______ the lives of millions and millions of people suffering from hunger to a great level.

　　A. has improved B. is improving C. improved

　　D. has been improving

　　9. My daughter, _________ all kinds of meat, would not like to eat any vegetable, which worries me a lot.

　　A. devoted to

　　B. addicted to

　　C. accustomed to D. exposed to

　　10. Generally speaking, ______ according to the directions, the drug has no side effect.

　　A. when taken

　　B. when taking C. when to take D. when to be taken

　　11. Some people say more but do less ______ others do the opposite. Ks*5u

　　A. once

　　B. when

　　C. while

　　D. as

　　12. Eggs, meat, vegetables and other foods can easily be poisoned by microorganisms such as ______.

　　A. phenomena

　　B. dilemma

　　C. diploma

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