i have finished可否省略have

i have finished可否省略have I have finished my homework.可否这么说 I finished my homework.为什么 have you finished your homework?中谁是谓语?它的回答yes,I have是省略句么?谓语是谁? I have just finished it I have finished the essay at last. I have finished my homework.反义疑问句 We've missed the last bus.I'm afraid we have no choice but to take a taxi.这里为什么用to take,to可否省略 I have a brother studying in university可否当作定语从句来理解?比如说是否可以当作是that被省略了? I won't lend you the book before I have finished it.为什么用have finished 请问这句应该是have finished还是finished?The moment I （have） finished I’ll give you a call. I will finish my work tomorrow .I will h finishedI will finish my work tomorrow .I will have finished my work tomorrow.那个对? I have already finished homework.have可以不要吗? Have you finished your homework Yes,I __it in twenty minutes.选 A.have finished 还是 B.finished 为什么? i have finished my homework,为什麼不i had? I have finished my homework before I ______(leave). 可是说i am finished吗?为什么是finished?这是什么时态?跟i have finished有什么差别? I have already finished my homework.(变否定句) I _____ finished my homework ______. I have finished my homework.和“I finished my homework.有区别吗?