A. 

My favorite summer outfit is a short shirt. 

=> Corrected : The sentence is corrected grammatically. 

And short pants. ✔

Because it's cool. ✔

B. 

1.Draw your face. ✔

2.Yes, teacher. -> Yes, ma'am.

=> Your sentence has a correct grammatical structure, but this has the correct usage/ expression.

3 Look at your face. ✔