(В) Пожалуйста ПОМОГИТЕ помогите пожалуйста решить!!!!!

1. You are from Russia, aren't you?Yes, I am.2. Pupils must do homework, mustn't they?Yes, they must.3. Your birthday is in May, isn't it?No, it isn't.4. London is the capital of Great Britain, isn't it?Yes, it is.5. Today the weather is bad, isn't in?Yes, it is.