将下列句子该被动语态：

题目

将下列句子该被动语态：
1.We should speak to the old men politely.
2.His uncle bought him a computer last year.
3.The teacher often asks us to listen carefully.
4.They found a dog lying on the ground.
5.When do we grow rice?

答案

1.The old men should be spoken to politely.2.He was bought a computer last year by his uncle.3.We are often asked to listen carefully by the teacher.4.A dog was founded lying on the ground.5.When shou...