help me please, since I am Russian and do not understand how to do the task

Answer:
(2) Does Tom play the guitar? - Yes, he does.
(3) What did Alice do this time? - She got in trouble at school.
(4) What did Mr and Mrs Payne do over the summer? - They spent timw together at the beach.
(5) What did Matt and Celine do for the holidays? - Matt and Celine went Christmas shopping together.
(6) What did Gary put on? - Gary put on his socks and shoes.
(7) What did you do for your project? - I made a poster.
(8) Why do you sit at a computer desk? - I prefer this desk over the school desks.
Hope this helps. :D