Câu hỏi của các câu sau they are going library , Sam is having lunch with his new friends , On Friday I have English matths geography and history

`1`. Sửa đề: They are going to the library.

`?)` Are they going to the library?

`->` Are + N_số nhiều + V_ing...?

`2`. Sam is having lunch with his new friends.

`?)` Is Sam having lunch with his new friends?

`->` Is + N_số ít + V_ing...? 

`3`. On Friday, I have English, Maths, Geopraphy and History.

`?)` What subject do you have on Friday?

`->` What subject + do/does + S + have?