Нужно дописать предложения, используя present perfect 1) look at all those dirty dishes. 2) i don't think i can pass the exam. 3) did your hear that noise?

1) Look at all those dirty dishes. You haven't washed them
2) I don't think I can pass the exam. I haven't studied hard
3) Did your hear that noise? Someone has screamed.

1) Look at all those dirty dishes. You haven't washed them yet.
2) I don't think I can pass the exam. I haven't studied hard this year.
3) Did your hear that noise? Someone has just screamed.