помогите пожалуйста исправь утверждения,если они не соответствуют действительность.

(оброзец) My sister is playing the guitar now.
-My sister isn't playing th3 guitar now.
1)My mum is sailing a boat at the moment.
2)My friend is skiing in the park now.
3)My English teacher is surfing in Australia now.
4)My dad is playing the violin now.
5)I am diving into the sea at the moment.
6)My grandpa and grandma are skatinq now.