If you _____ faster, we could have turned in the project bef

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If you _____ faster, we could have turned in the project before the deadline. 选A,详细解释原因?
A. work, B. had worked, C. have worked, D. working
我个人觉得应该选择B,属于条件句的虚拟语气,因为主句中用的完成式.

是选B.从could have turned 可知是与过去的事实相反,虚拟语气的条件状语从句要用过去完成时.

If you _____ faster, we could have turned in the project bef 4. If you _____ faster, we could have turned in the project If you _____ faster,we could have turned in the project befo _____,we could have been in time.答案选的were it not for the sto IF I could have anyone,in the word it would stillbe you. If I could have anyone in the world,it would still be you. -Could you finish the task in two days?-_____.I have somethi could you c___ the project on time If it _____ tomorrow,we will have a football match in the pl 5. If there were no wars in the world, we would have _____. A guarter earlier,_____ we could have caught the bus. We have faith that the project, if according to plan, will d