HOMEWORK CORRECTION: 

A 

Let's go to a fast-food restaurant.  ✔​

​=> Corrected: The sentence is corrected grammatically.

Let's go to the market. ✔​

Go, go, go!!  (space and punctuation)✔​​

​

B

chalk ✔​​

paper ✔​​

paints (spelling) ✔​​​​