IV. Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence 1. __________ the church service, people keep quiet. A. While B. During C. When D. As 2. __________ in doubt about taking the medicine, consult your doctor. A. As B. Though C. As soon as D. When 3. __________ I am aware, this is the last talk on the topic. A. Where B. As long as C. Since D. As far as 4. He wouldn’t have failed his exams__________ he hadn’t been ill. A. unless B. in case C. if D. although 5. It is__________ to go swimming. A. too cold B. so cold C. such a cold D. enough cold that 6. The bed is not clean enough__________. A. to lie in it B. to lie in C. for lying in D. in which to lie 7. The piano was too heavy__________. A. for nobody to move B. for nobody to moving C. for anyone to move D. for anyone to moving 8. He__________ to be offered the job. A. was such experienced B. was too experienced C.was not experienced enough D. B and C 9. These are__________ that I can’t finish them. A. a such long assignments B. such long assignments C. such a long assignments D. too long assignments 10. __________ you change your mind, I won’t able to help you. A. If only B. Because C. Unless D. Provided 11. He hid that letter in a drawer__________ no one could read it. A. so that B. because C. although D. than 12. __________ Tom was unable to see anything, he knew someone was in his room. A. Because B. In case C. If D. Even though 13. They were disqualified__________ they fought to the last minute. A. as B. since C. though D. once 14. The teacher explained the lesson twice__________ the students understood it clearly. A. as long as B. so that C. because D. as if 15. __________ you keep it in good condition, I’ll lend you my car. A. So long as B. Although C. Because D. While 16. The woman was so beautiful__________. A. that I couldn’t help looking at B. that I couldn’t help looking at her C. for me looking at her D. that for me to look at 17. It is such an important matter__________ I can’t decide anything about it myself. A. so B. because C. that D. if 18. Marian didn’t participate in the contest__________ her lack of confidence. A. because B. because of C. since D. despite 19. It is__________ that I have read it twice. A.such an interesting book B. so interesting a book C.too interesting a book D. A and B 20. Lawrence is__________ to do this exercise. A.no intelligence enough B. not intelligent enough C.not enough intelligent D. so intelligent enough