1. Jane likes singing / Jane likes to sing a song (songs).
2. It is good to eat fish. / Eating fish is good (for our health).
3. We will do some cleaning (in our classroom) tomorrow. / We will clean our classroom tomorrow.
4. Jack is watching TV now. / Now Jack is watching TV (at home).
5. Lily went to school by bike yesterday(morning/afternoon). / Yesterday Lily rode to school.
答案不唯一