Ответ:

1) I have already done my homework

2) They have already finished their project

3) Have you already cleaned all house?

1) I have just woken up

2) We have just joined the group

3) I have just seen him

1) I haven’t eaten yet

2) You haven’t helped your mom yet

3) They haven’t changed their mind yet

Ответ:

just:

1.He has just had a hamburger, so he isnt hungry at all

2.They have just returned from a trip to Polessye, so they are awfully tired and sleepy

3Mr. Rambler has already finished his interview, so he has just left the studio

already:

1. Mr. Rambler has already finished his interview, so he has just left the studio

2.Yes, i've already been to Brazil

3.I've already seen a lion in the Zoo

yet:

1.I havent been to India yet.

2.I havent been to India or China yet

3.I havent been to Africa yet