I have just cleaned my room.
The cat has just caught a mouse.
Тут используется Pr.Perfect: has/have + V3, потому что при just используется это время.
Has для He, She, It; Have для остальных.
1.they are not from Moscow
2.it is not from Paris
3.you are not sad
4.We do not cold
5.Jim pupil
1. I will do my puzzle.
2. I will stay at home.
3. I will buy a lot of computer games.
4. I will stay at home for holidays and will be studying a lot.
5. I will probably not go to school.