Decide whether each of the following is a simple sentence, a compound sentence, or a complex sentence.

1			Unless Fred comes to the door, the dog can't come in.
			A)	simple
			B)	compound
			C)	complex
2			Maria is an extremely good mother.
			A)	simple
			B)	compound
			C)	complex
3			Black bears are bigger than they look on television, and they are much faster.
			A)	simple
			B)	compound
			C)	complex
4			Pot roast should be cooked for a long time at a low simmer.
			A)	simple
			B)	compound
			C)	complex
5			The pile of books started to sway as the child made repeated attempts to reach the one on top.
			A)	simple
			B)	compound
			C)	complex