Question 10: true
Question 11: C "Remember, look both ways before you cross a street."
Question 12: A "Do you remember how to figure out the area of a parallelogram? I'm having trouble doing it."
Question 13: C "Make sure you put the turkey in the oven at noon," Mildred said.
Question 14: C begin a new paragraph
Question 15: C The Cubs, my dad's favorite ball club, finished in last place again.
Question: 16: Before but
Quesion 17: D "It seems to me," mused Shawn, "that those policies are confusing."
Question 18: D no comma necessary