题目

这个是独立主格问题?
________twice,the postman refused to deliver our letters unless we chained our dog.
A.Being bitten B.bitten
C.Having bitten D.To be bitten
A项是否表示正在被咬?选择C的话应该+ been
还有啥情况可以用过去分词放在句首?
_______,by the advances in technology,many farmers have set up wind farms on their land.
A.Being encouraged B.Encouraging
C.Encouraged D.Having encouraged
A项是否表示正在被鼓励?
把A项怎么改才能变成独立主格结构?改后的独立主格结构的doing形式的话,表原因用.
还有,到底啥情况可以用过去分词放在句首?
8个选项的首字母都大写的。我打错了

提问时间：2021-01-28

答案

你分析得很好呀.
类似的还有.
Heard by many times, this song is really the one that I want to sing to you at this moment.
我很想把这首我听过许多次的好歌送给你.
还有很多类似的.
Caught by many times, this man still live a life as a thief.