We'll leave some evenings free, that is, if it is all right

it is all right还是that is all right? It was not who is right but what is right,we all think,that that is all,that is it ,that is right 区别? that is all right! THAT IS RIGHT?THAT IS ALL RIGHT? it is all right 英语All right和It is right和That is all right区别? When shall we start?Let's____ it 8:30.Is that all right if she is all right 21.---Is it all right if I keep this photo? It is all right!和That is all right!的区别 That is right 和That is all right,All