请帮我把几个英语句子改成被动语态

很高兴能够在这里回答你的问题,填写
1 Are the children examined by the doctor every year?
2 He was taught how to read the English words by me.
3 I was given a very nice present by her on my birthday.
4 I will be introduced to his friends by him.
5 This novel was written by Charles.
6The baby shouldn't be left home by you.
7 When will the next World Expro be hold by them?
8 How often are your room tidied by you?
9 The rules mustn't be broken by you.