Question

Chuyển thành câu bị động C1.Somebody took some of my books away C2.This boy didn't break the window C3.Teacher sometimes tells us a story C4.Mary didn't cut a cake with a sharp knife C5.They don't use these machine

Answer 1

4, a cake wasn't cut with a sharp knife by Mary
5, these machine aren't used

Answer 2

C1.Somebody took some of my books away

=> My books were took away by somebody

C2.This boy didn't break the window

=> The window wasn't broke by this boy

C3.Teacher sometimes tells us a story

=> We are sometimes told a story by teacher

C4.Mary didn't cut a cake with a sharp knife

=> The cake wasn't cutted with a sharp knife by Mary

C5.They don't use these machine

=> The machines aren't used by them