Answer:
<em>1.)</em> <u>Comma.</u>
<em>2.)</em> <u>Lucy made creative, colorful Valentine’s Day cards for all of her classmates.</u>
<em>3.)
</em> <u>The bus was hot crowded and loud, so we decided to get off and walk.</u>
<em>4.)</em> <u>Before gym class, the students seem happy, excited, and ready to play.</u>
Only use for checking please. I'm confident you guys can do this! I'm struggling as well, and ik its hard to find motivation so... good luck! you can do this, i swear<33