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C. because D. unless17. If I get a job, I _________ as a teacher. A. work B. will work C. works D. worked18. If it________ tomorrow, we’ll go to the park. A. will not rain B. rains C. doesn’t rain D. isn’t rain will do much better ________ you are more careful with oyur spelling. A. if B. before C. although D. unless20. All of us will be happy _____ you can e with us. A. while B. if C. but D. or答案:CABDBBACBACDDDA DBCAB 將由unless與if…not構(gòu)成的句子進行改寫。make plain suffer open understand hurtturn explain study burn pass buy hikeget has fall1. If you _________ the key, the door___________.2. If we _________ too much noise, the neighbours __________.3. He won’t be able to go to ___________ if the typhoon__________.4. If you _________ the forests, the environment__________.5. James _________ himself if he__________ off that ladder.6. The students ________ their exams if they _______ hard.7. I ________ a new car if I ___________ a pay rise.8. She ________ it if you ________ it more clearly.答案:1. turn will open2. make will plain3. hiking gets4. burn will suffer5. will hurt falls6. will pass study7. will buy have8. will understand explain