Exercise 1
1. A. proofs
B. books
C. points
D. days
2. A. asks B. breathes C. breaths
D. hopes
3. A. sees B. sports C. pools D. trains
4. A. tombs B. lamps C. brakes D. invites
5. A. books B. floors C. combs D. drums
6. A. cats B. tapes C. rides D. cooks
7. A. cats B. tapes C. rides D. cooks
8. A. walks B. begins C. helps D. cuts
9. A. shoots B. grounds C. concentrates D. forests
10. A. helps B. laughs C. cooks D. finds
11. A. hours B. fathers C. dreams D. thinks
12. A. beds B. doors C. plays D. students
13. A. arms B. suits C. chairs D. boards
14. A. boxes B. classes C. potatoes D. finishes
15. A. relieves B. invents C. buys D. deals
16. A. dreams B. heals C. kills D. tasks
17. A. sounds B. cleans C. preserves D. focuses
18. A. carriages B. whistles C. assures D. costumes
19. A. offers B. mounts C. pollens D. swords
20. A. miles B. words C. accidents D. names
21. A. sports B. households C. minds D. Plays