Question

把下列句子变成被动语态？

Answer 1

1. Flowers are planted every year (by him).
2. A kind of medicine was discovered last month (by the man).
3. The old man was looked after for the last two weeks (by me).
应该用完成时更好：
The old man has been looked after for the last two weeks (by me).
4. Is your room cleaned every day?

Answer 2

1.The flowers are planted every year
2.A kind of medicine was discovered by the
man last month.
3.The old man was looked after by me for
the last two weeks.
4.Is your room cleaned?