Can I say,
(a) I have many friends in my school. Some are boys, and some are girls.
(b) His hobby is playing chasing./ ...chasing each other.
(c) I hope (that) our friendship will last forever.
I hope that our friendship will be remain.
I wish me and Merry can be a best friend forever.
(d) We play / are playing skipping rope at the playground.
(e) She is in / - Standard 4.
(f) Her hobbies are reading, swimming and jumping ropes.
(g) When I have the problem, she will help me to solve the problem.