I must have a sprint to acquire the best mark..Make an extra effort

I must have a sprint to acquire the best mark..Make an extra effort I must have a problem i must have a ipad 对还是i must be have a iPad 正确?哪个对? i think he must have been a mechanic,中的must和have been是什么词啊? 1.I didn’t hear the phone.I ___ asleep.A.must beB.must have been Oh dear,i must have catched a cold! 英语翻译i must have left the camera in a shop I must have a problem 用中文读出来 i believed that we must have a happy future i must have a ideas in my heart for ever You__me,beause i did not say that.A.must have misunderstood B.must misundertand I can't find my umbrella.You __________it in the office.A.must have forgotten B.must have left C.must leave D.must forget I didn't hear the phone,I___out,A .must be B,must have gone C.must go I have a toothache.I must see a dentist的同义句转换 I have a toothache today,I must see a dentist now我这样写对吗? 英语翻译--You didn't invite Anna?--______her,too?A Should I have invited B Must I have invited C Must I invite D Should I invite I must __________immediately because I have got a high feverI must __________(replace)immediately because I have got a high fever I didn't hear the phone.I _____ asleep.A.must beB.must have beenC.should have beenD.could have been