题目内容
将下面句子变为被动语态,每空一词。
They produce silk in Suzhou.
Silk ________ ________ in Suzhou.
The children will sing an English song.
An English song ________ ________ ________ by the children.
I have given this book to the library.
This book ________ ________ ________ to the library.
Did they build a bridge here a year ago?
________ a bridge ________ here by them a year ago?
We'll put on an English play in our school.
An English play ________ ________ ________ on in our school.