IV. Complete each sentence by writing the correct form of the verb in the parenthesis. Write the correct answer in the blank.
(clean) 16. Nita _____ their yard yesterday.
(help) 17. Beah _____ her mother in the kitchen.
(ride) 18. Every saturday, my family ______ on a bus.
(live) 19. Thousand years ago, people ___ in caves.
(hunt) 20. They ____ animals for food.