A. What makes your day good?

Watching T.V makes me feel good. 

=> Corrected : The sentence is corrected grammatically. 

​

B. Okay

Turn the light off. 

=> This has the correct usage/ expression.​

Can I use your skate board?

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

​The city is clean now.

Sure here your.​

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

​The house is so dirty.​​