9. Have you heard（ ）news？The piece of（ ）petrol is going up again!A. the, the B. 不填，the C. the, 不填 D. 不填，不填 ...

1. Nuclear power’s danger to health, safety, and even life itself can be summed up in one word: radiation. Nuclear radiation has a certain mystery about it, partly because it cannot be detected by human sens...

2. It is, everyone agrees, a huge task that the child performs when he learns to speak, and the fact that he does so in so short a period of time challenge explanation. Language learning begins with listening...

14. （ ） a wrong address, he could not find his friend’s flat.A. Giving B. To be given C. Having given D. Having been given ...

7. Did you go to Beijing last year? No,（ ）.A. I have never gone B. I haven’t gone to Beijing C. I never go there D. I’ve never been to Beijing ...

16. We are looking forward to （ ）a trip to your country.A. take B. taking C. be taking D. having taken ...

7. “Where（ ）my　umbrella?”“Somebody（ ）it　away　by　mistake.”A. is,　must　have　taken B. is,　must　take C. have　been,　must　take D. is,　takes ...

2. I wish I（ ）ill yesterday; I could have gone with you.A. was not B. were not C. have not been D. had not been ...

19. You'll have to pay for the holiday in （ ）,Tom.A. front B. advance C. ahead D. forward ...

12. I don’t trust him at all. His smiles always make me （ ）.A. feeling sick B. be sick C. being sick D. sick ...