1`. If you don’t finish this exercise, I won’t let you out. * a. As long as you finish this exercise I won’t let you out. b. Unless you finish this exercise, I will let you out. c. Provided that you finish this exercise, I will let you out. d. If you finish this exercise, I won’t let you out. 2. She did the homework last night so she gets a high score today. * a. If she did the homework last night, she would get a high score today. b. If she didn’t do the homework last night, she wouldn’t get a high score today. c. If she hadn’t done the homework last night, she wouldn’t have got a high score today. d. If she hadn’t done the homework last night, she wouldn’t get a high score today. 3. If I had cleaned the house, I could have gone to the movie. * a. Had I cleaned the house, I could have gone to the movie. b. Had I clean the house, I could have gone to the movie. c. Had I cleaned the house, I could had gone to the movie. d. Had I cleaned the house, I could have go to the movie. 4 Susan..... the problem if she..... in the office right now. * a. solved _ were b. will solve _ is c. would solve _ were d. solves _ is 5. If the weather.... fine last nice, there.....roses in our garden now. * a. were _ will be b. had been _ would have been c. were _ will been d. had been_ would be giải nhanh giúp em với ạ. Cảm ơn.