Chuyển câu chủ động thành câu bị động
16) They have to repair the engine of the car
17) They boys broken the window and took away some pictures
18) People spend a lot of money on advertising every day
19) Teacher is going to tell a story
20) Mary is cutting a cake wth a sharp knife
21) The children looked at the woman with a red hat
22) They have provided the vicims with food a clothing
23) People speak English in almost every corner of the work
24) You mustn't use this machine after 5:00 p.m
25) After class, one of the students always erases the chalk board