Viết câu hỏi cho những từ được gạch chân

1 she will come here at 10 o'clock
what time.......
2 they are playing game with their friends
who.......
3 she is sad because her cat is death
why ....
4 they travel around the world by plane
how.....
5 she will be thirteen years old on her next birthday
how old....
6 it is about three kilometers from my house to the school
how far ....
7 we are going to stay in nha trang for a month
how long .....
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