Нужна помощь по англ.языку complete the following sentences using the modal verbs can , must, may , ought to, have to , be to

1) He knows many things about what people have to do in this kind of situations. 2) The student who made a report dare to go against the rules. 3) Don't pay attention to what he says. He must be out of his mind. 4) He knows German well, he can speak the language fluently. 5) Whatever happens you must stand your ground until the end. 6) It's a very interesting journal. I definetly need to buy another issue. 7) It is not Arnold's fault. You have to apologize to him.     8) I had no idea that we must pay for food too. 9) After examinations I asked if we could talk to the teacher. 10) It's such a pity that we need to do this in order to survive here. 11) She lost her book and she may be disappointed.  12) He is so excited by the fact that he can do whatever he wants now. 13) He came to the conclusion that the whole family should move from this place. 14) They do everything they can. 1) In september many students of our group came back to the capital because they have to continue their studies there. 2) Though he understood that he was wrong, he dare not to apologize to them. 3) When one is dictating one should pronounce all words clearly. 4) The conference is postponed due to director who needs an emergency surgery. 5) Don't think that I am interfering but  can't you explain me what's going on? 6) I've found him there, in the library where any noise is not to be heard.  7) I've lost a book from the library and I'm pretty sure someone must have already found it and picked it up. 8) The report is too long, you should remove some things from it. 9) He doesn't know the truth.You have to tell him everything. 10) Is there any reason why you shouldn't at least try it? 11) If it's a matter of opinion, I sould tell them how I want it to be.