Sylvia was walking down the sidewalk pulling her new red wagon. It was a pretty fall day. Some of the leaves were turning colors and falling off the trees. She crunched through a pile of dry leaves. Suddenly a dog barked nearby and Sylvia jumped in surprise.
Which happened because the dog barked?
1. Sylvia pulled her wagon down the sidewalk.
O 2. Sylvia jumped in surprise.
3. Sylvia fell in a pile of leaves.
4. Sylvia looked up at the leaves on the trees.