Identify the simple subject and main verb in each of the sentences below. Put one line under the subject and two lines under the verb.

1. I ate dinner at Jim's house.



2. Birds usually fly south for the winter.



3. Students must learn many new words.



4. Mike is a very shy person.



5. Children see the world differently from adults.



6. We waited patiently for the new guy to show up.



7. Many textbooks begin with lessons on introductions.



8. Most fathers work hard to care for their children.



9. She was my first teacher.



10. Swimming is good exercise.