请根据所提供的情景，用can或could写出表示请求许可的句子。

You missed the last English lesson．You want to look at your friends'notes．

_______________________________

请根据所提供的情景，用can或could写出表示请求许可的句子。

Your uncle and aunt have invited you to join them for a walk in a park nearby．You want to bring your dog along．

_______________________________

请根据所提供的情景，用can或could写出表示请求许可的句子。

You want to ask your teacher for permission to leave school early today．

_______________________________

请根据所提供的情景，用can或could写出表示请求许可的句子。

Your friends are going to the cinema tonight．You want to go too．

_______________________________

请根据所提供的情景，用may或might写出表示请求许可的句子。

You are on a bus and the person in front of you has the window open．It starts to rain and you are getting wet．

_______________________________