Complete the sentences. make them true. 1)im quite certain that .....

1) Im quite certain and I can say that he will not act like that. 2) The most difficult thing in the world must be losing or betraying someone you love. 3) That is for sure, you should accept, there is no doubt about it. 4) I have always had a feeling that he is a good person and he cannot hurt anybody or do bad things. 5) I think, passing these exams, must be quite easy. 6) Do not shout at me, stop looking at me like that and I know I am right. 7) A good computer might be a wonderful thing to have.