It should be "Their car is blue."
There is a location. Their represents possession.
A good graphic organizer to use is a Venn Diagram. Venn Diagram uses circles that intersect to show similarities and differences.
Similarities are placed in the area where the circles intersect and differences is then placed in the outer circles.
B) Surfers surf all winter long in Southern California wet suites keep them warm.
Plays based on the lives of saints were known as A) "Miracle Plays"