с английским надо раскрыть скобки правильно
1.he (already/make) a tree house 2.They (not/have) IT classes
3. your friend ever (meet) a ghost ​

1.he has already made a tree house

2.They (not/have) IT classes ( больше ничего не было? все в перфекте надо? если да, то "They have not had IT classes ")  

3. Have your friend ever met a ghost ?

Объяснение:

1. He has already made a tree house.

2. They don't have IT classes.

3. Have your friend ever met a ghost?

Объяснение:

1. He has ALREADY made a tree house- Present Perfect

2. They don't have IT classes- Present Simple

3. Have your friend EVER met a ghost?- Present Perfect

1. is she a teacher? yes, she is 2. you aren't children. you are students 3. are they in the classroom now? no, they aren't 4. who are you? i'm a student 5. she is my friend 6. he isn't a doctor 7.  these are my children8. what is it? it's a new book9. where was he last week?   10. we are friends===============================1. where are  you from? 2. how old are  you? how old is  your brother? 3. what is  your name? 4. i am glad to see you. how are  you? 5. the dog is  in the garden. 6. my parents are workers. 7. is  your father a teacher? — no, he is  a doctor. 8. he isn't a student, he is  a doctor 9. that book isn't very interesting. 10. the book is  on the table. 11. moscow is  the capital of russia. 12. are  you students? 13. what is  the weather like today? 14. what is  on the table? 15. is  boris a good football player?