怎么区分have、has、haven‘t、has’t

怎么区分have、has、haven‘t、has’t have的否定形式什么情况下用don t have 什么情况用haven t 怎么区分?我一直不懂唉. have和has的用法?怎么区分`` One of those students_____passed the exam,but the rest______.A.have;haven't B.have;hasn't C.has;hasn't D.has;haven't why? 反义疑问句区分We have ever been to Shanghai,haven”t we?You have a headache,don’t you?为什么第二句后面不是haven't you? haven't been in,have/haven't been to,have/haven't gone to 关于have一般过去式的否定句,Tom dosen't eat lunch because he(have,not)__enough time between classes.Yesterday he(have,not)__time for lunch.答案分别是doesn't have 和 didn't have.请问这里填 haven‘t和 hadn't可以么?怎么区分 the key to my door___.i have looked for it every where,but i still__itA is missing ;can't find B has lost ; don't findC has lost ; haven't foundD has been gone ; haven't found为什么选A Neither she nor I___the filmA.has seen B.have seen C.hasn't seen D.haven't seen 选择：Neither she nor I___the filmA.has seen B.have seen C.hasn't seen D.haven't seen He ____ to study for the math test. A.have B.hasn't C.has D.haven't The students except you _ finished homework yet.A.have B.has C.haven't D.hasn't正确答案是什么, has 和have都用在什么形式,hasn't和haven’t用在什么形式 Have you seen Jack these days?---- No,I haven’t.He _______ Beijing.A.have been inB.has been to C.has gone to D.has gone have/has been to 和 have/has gone to 的区别.该怎么区分啊. Nobody has the right to go there to have dinner free,____?A.hasn’t it B.has it C.haven’t they D.have they 用many much a lot of填空I haven't got ____ tomatoes.We haven't got _______ meat.Susan has _______ things to do this week.Do you have _______ eggs?I haven't got ________ money. My dictionary ___,I have looked for it everywhere but still___ it.A.has lost,don't find B.is missing,don't find C.has lost,haven't found D.is missing,haven't found.