2)are,playing, yes they are
3)is,biting,yes,it ia
4)is,playing,no she isn't,she is playing the guitar
5) Are , jumping , yes they are.
<span>Jane has got a big collection of badges, hasn't she?
George collected toy cars last year, didn't he?
Ronald gets up at eight o’clock on the morning, doesn't he?
Sally fed her pet, didn't she?</span>
Письменное сокращение от слова someone's/somebody's-чей-то,чья-то
Dear Dad,
I was so happy to get your letter. I am sorry I haven't answered earlier but I was really busy with my school.
You asked me to tell you about my school. Well, I finished the school year very well. I have to pass many different exams, since I'm in 9th grade. I plan to go to the 10th grade next year. Holidays I will spend with my friends and parents. I think I can come to visit you.
Unfortunately, I'd better go now as I've got a lot of homework to do. Keep in touch!