1. The birds (sing, sings) sweetly in the tree.2. A colorful butterfly (flies, fly) high in thegarden now.3. The river (flow, flows) calmly through thevalley.4. The cleaners (study, studies) their lessontonight.5. My friend and I (play, plays) volleyball thisSaturday.6. Their team (win, won) the championshiplast week.7. She (pick, picks) ripe guavas in theorchard.8. The cat (climb, will climbs) the acacia tree.9. We (go, goes) to Baguio City.10. She (are, is) my best friend.