Составить WH-questions к предложениям

1. The man is waiting for you
2.The children were playing in the garden from 9 till 11 a.m
3.The delegation is arriving at 6 p.m
4.She will be working at all day next Sunday
5.The boy was taking an exam at 3 yesterday
6.They will be discussing that problem for 4 hours.
7.i`m playing chess now.
8.We are having a meeting just now.
9.Tomorrow she will be making a dress for her daudhter.
10.Last year we were having problens with Chinese grammar.