must vs should

hello

Mike was very happy when he received the result of his exam.he… a very good mark.

1- must have got
2-should have got
3-must get
4-should get

Thanks a million.

“must have got”

is the true answer. B may also be possible practically.

thanks a billion…

what is the meaning of -would rather -and when can iuse iT ,please give me an example

Jack: “How nice we are going to have a holiday. I wanna go to Paris.”
Solomon: “I would rather go to Shiloh.”