Нужно дописать предложения, используя Present Perfect

1) Look at all those dirty dishes. You ...

2) I don't think I can pass the exam. I ...

3) Did your hear that noise? Someone ...

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.