` Answer : `

` *** #Hoidap247# *** `

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` Ex I, `

` 1. to ` A fish was eaten by the cat.

` 2. to ` Their old grandparents are looked after by children.

` 3. to ` A nice girl was seen at the party last night by me.

` 4. to ` Are toys liked by you `?`

` 5. to ` Milk is drunk every morning by us.

` 6. to ` The floor is being cleaned now.

` 7. to ` The problem will be solved soon.

` 8. to ` Our homework is being done at the moment.

` 9. to ` Was your lesson being learned by you at `7` pm last night `?`

` 10. to ` Their work has just been finished.

` ----------------------- `
` - ` CT Câu Bị Động Thì HTTD ` : ` S `+` am `/` is `/` are `+` being `+` V3 ` (+ ` by Sb `/` O `)`
` - ` CT Câu Bị Động Thì QKĐ ` : ` S `+` was `/` were `+` V3 `(+` by Sb `/` O `)`
` - ` CT Câu Bị Động Thì HTĐ ` : ` S `+` be `+` V3 `(+` by Sb `/` O `)`
` - ` CT Câu Bị Động Thì HTHT ` : ` S `+` have `/` has `+` been `+` V3 `(+` by Sb `/` O `) `
` - ` CT Câu Bị Động Thì QKTD ` : ` S `+` was `/` were `+` being `+` V3 `(+` by Sb `/` O `)`

` - ` CT Câu Bị Động Thì TLĐ : S `+` will be `+` V3`/-`ed `+` (by O)

` #Pyyx# `