`1.` A life of cakes was made.

`-` Bị động thì QKD 

`-` Cấu trúc: S + was/were + VpII + (by + O) + time. 

`-` A life of cakes = A + N số ít `->` Chia tobe "was"

`2.` The work will be finished.

`-` Bị động thì TLD

`-` Cấu trúc: S + will + be + VpII + (by + O) + time.

`3.` A lot of flowers were bought.

`-` A lot of + N số nhiều `->` Chia tobe "were" 

`4.` The dishes have been washed.

`-` Bị động thì HTHT

`-` Cấu trúc: S + have/has + been + VpII + (by + O) + time

`5.` The car was repaired. 

`-` Chủ ngữ câu chủ động là các đại từ nhân xưng (I, you, we, they, he, she, it) `->` Chuyển sang câu chủ động có thể ko thêm (by + O) 

`-` BĐ :

`+` QKĐ : S + was / were + VpII ( by O )

`+` HTHT : S + have / has + been + VpII ( by O )

`+` TLĐ : S + will be + VpII ( by O )

`1`.A life of cakes was made

`2`.The work will be finished

`3`.A lot of flowers were bought

`4`.The dishes have been washed

`5`.The car was repaired

`\text{# TF}`