Questions 15–23: Rewrite each sentence in the tense indicated.
15. Mona Lisa smiles mysteriously. Past:
16. The three of us plan on a picnic. Present perfect:
17. Both teams play a good game. Future:
18. I expect to enjoy the beach. Past perfect:
19. We pack sandwiches for lunch. Future progressive:
20. Ron forgets to feed the cat. Future perfect:
21. Anne stays home during her boyfriend’s trips. Past perfect progressive:
22. The author promotes her book. Future perfect progressive:
23. Cardinals nest in the shrubs. Present perfect progressive: