Have you finished makeing the model planes?这是个什么疑问句,为什么是have

Have you finished makeing the model planes?这是个什么疑问句,为什么是have A：David,do you have make model planes?B:No,But I have a car. A：David,do you have make model planes? B:No,But I have a car Have you finished the work? Have you finished the plan? have you finished already?为什么不用have you finished yet? 是Have you finished already?还是Have you already finished? 英语短语改错：1、Peter likes make model planes at home.2、Do you have 你写完了作业么?Have you finished your homework?为什么是have done而不是have It seems that you have finished the vocabulary exercise 是个什么 你们完成了吗是are you finished 还是 have you finished 还是什么? have you finished already?为什么用already