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you are in danger, you’d better be ________ ___ _____ _______ ________ ________. 4. We would have won if we had trained harder. ________ we ________ harder, we wouldn’t have ________. 5. The firm has offered me a flat and a car. The firm has ________ me ________ a flat and a car. Ⅳ .單項填空 1. If it were to snow tomorrow, we ________ to change our plan. A. should go B. would have gone C. had gone D. were to go 2. If I ________ where he lived, I ________ a note to him. A. knew; would have sent B. had known; would have sent C. know; would send D. knew; would have sent 3. ________ rich, I would buy an expensive car for you. A. Was B. If I am C. Were I D. If I was 4. ________ more careful, his ship would not have sunk. A. If the captain were B. Had the captain been C. Should the captain be D. If the captain would have been 5. Were I to do it, I ________ it some other way. A. will to do B. would do C. were to do D. would have done 6. I didn’t see your uncle at the he ________ , he would have said hello to me. A. would e B. had e C. came D. did e 7. — What’s your opinion? — ________, I’d like to take a job as a waiter in a restaurant. A. If I am you B. If I would be you C. If I were you D. Had I been you 8. It’s a pity Tom isn’t he ________ , we would be happier. A. came B. es C. had e D. has e 9. If there ________ no electricity in the future, our life ________ change a lot. A. will be; will B. is; will C. should be; would D. would be; would 10. ________ he referred to in his article was unknown to the general