English thing

Direct address

100

What is wrong with this sentence

Hey Colin hows your day.

Hey, Colin, hows your day.

200

Fix the sentence. 

Hi, Brennen, do you have any markers. 

Hi, Brennen, do you have any markers?

300

make the sentence right.

Hi,Caleb Williams hows a going.

Hi, Caleb Williams, hows a going.