A,W​hen did you go to the museum?

=> Corrected capitalization. 

  when I did  go to the museum. --> When did I go to the museum?

=> Corrected: The sentence is corrected grammatically.​

  W​hen did you go to the market?​ 

=> Corrected capitalization and punctuation.​​

B. It's sunny. (Correct)

  Hi yamy. --> Hi, Yalmi.

=> Corrected punctuation.​

  Hi simsoon .  come on! we are go to the shcool. --> Hi, Simsoon. Come on. Let's go to school to school together.

=> Corrected: The sentence is corrected grammatically.​​