Express the same using passive.
1. Children ought to visit their parents and grandparents regularly.
2. Students have to learn a lot of new idioms by heart.
3. Dinner is ready and hot. Someone has just cooked it.
4. We couldn't get inside because mother was washing the floors.
5. Someone told Tom the latest news.
6. We never laugh at Jessie.
7. They must translate the speech when the time comes.
8. People had grown a lot of trees by the time I came.
9. I am looking for my ring.
10. A lot of children use computers nowadays.​

1. Parents and grandparents ought to be visited by their children regularly.
2. A lot of new idioms have to be learnt by students by heart.
3. Dinner has just been cooked.
4. We couldn’t get inside because the floors were being washed by mother.
5. The latest news was told to Tom.
6. Jessie is never laughed at.
7. The speech must be translated when the time comes.
8. A lot of trees had been grown by the time I came.
9. My ring is being looked for.
10. Computers are used by a lot of children nowadays.