将下列各句改为被动句。
1.We can finish the work in two days.
The work _______ _______ _______ in two days.
2.The children will sing an English song.
An English song ______ ______ _______ by the children
3.You needn't do it now.
It ______ _______ _______ by you now.
4.Lucy sent me a New Year Card last week.
A New Year Card ______ ______ ______ me by her last week.
5.He made me do that for him.
I ______ ______ ______ that for him.
6.I have given this book to the library.
This book ______ ______ ______ to the library.
7.Did he break the window yesterday?
______ the window ______ ______ _____ yesterday?
1.can be finished 2.will be sung 3.needn’t be done 4.was sent to
5.was made to 6.has been given 7.was broken by him