1. A: She speaks English very fluently.

B: Yes, she ………… English for many years.

2. A: What do you think about the new lab assistant?

    B: I don’t know him but Dr. Lee …………….is quite reliable.

3. A: Where did you go last night?

    B: I went to the movie last night but ……….. home and relaxed.

4. A: Did you get angry with him last night.

    B: To be honest with you, I ………. .

5. Wild animals …………… than smaller farm animals.

6. Contact lenses ………………. of acrylic are more transparent than those made of glass.

7. In my old school album are the photos of some friends ……….. .

8. Faraday, an English chemist and physicist, debated that ………………. .

9. A bat almost spends the daylight hours …………. upside down inside a cave.

10. Anyone who ………… to take the test, should sign up before Friday.

11. Stop crying. Tell me ………….. is the problem so that I can try to resolve it.

12. She tried her best to be serious, but she couldn’t help ………. .

13. A: ‘Do you remember …………. her at my office two years ago?’
B: ‘Yes, I do, it was such a nice day.’

14. ………….. you been able to study more, you could have passed the test.

15. The permission ………….. to build the new clinic will be granted soon.

16. In bacteria and other organisms, ……………. is the nucleic acid DNA that provides the genetic information.

17. ……… is the science of making artificial replacements for parts of the human body.

18. The student asked her professor if he would have undergone the surgery ………… informed how difficult it would turn out to be.

19. Most foods have more than one nutrient, but ………… provides all the essential nutrients.

20. A number of doctors involved in brain research ……….. that violence has its roots in certain sections of the brain.

21. …………….. the consequences of the final decision, the committee approved the proposal.

22. The doctor strongly recommended that the old man …………….. his medicine at regular intervals.

23. It is believed that cancer cause more deaths than ……………. together.

24. Helium is …………… all gases to liquify and is impossible to solidify at normal air pressure.

25. The part of a trip …………………. in the airport is really the most tiresome.

26. Unless a disguised insect …………. a contrastive background, it may be very difficult to recognize it.

27. Are you going to fix the telephone yourself or are you going to ……………?