越详细越好,满意的话可以多加点积分
各位英文好的哥哥姐姐弟弟妹妹帮帮忙!谢谢拉!
被动语态形式:Be+done
1. am/is/are+done
2. was/were+done
3. have/has+been done
4. had +been done
5. shall/will +be done
6. can/may/should +be done
7. am/is/are+being done
8. would be done
9. will have been done
10. see sb. do sth