Classify each sentence according to its structure: simple, compound, or complex.
1. Caroline ran out of milk, so she made a quick trip to the store and bought some.
2. This year PE, we are going to learn about volleyball, gymnastics, football, and lacrosse.
3. I can go to the school dance this weekend if I finish all my chores in advance.
4. My brother watched TV while I studied for my test.
5. The monkey swung through every branch in the tree effortlessly and swiftly.
1. Compound
2. Simple
3. Complex
4. Compound
5. Simple