要7个英语被动语态的句子,急
问题描述：
要7个英语被动语态的句子,
急
答
1.The jewels in a box has been found by us.
2.The light bulb was invented by Thomas Edison.
3.Stamps are used by people for sending letters.
4.Rice are grown by farmers in the South of China.
5.A new dictionary was given by him this morning.
6.The stone wasn't thrown by the boy just now.
7.The machine was not operated by him.