从所给的选项中选出适当的句子，把句子的序号填在横线上.

A：①________

B：Oh，my favorite subject is English．

A：②________

B：Because it is very interesting．

A：Then who is your English teacher?

B：③________

A：When do you have English?

B：④________

A：Do you want to join the English club?

B：⑤________

A：Let’s go there and join it．