`1.` This dish is brought to me by the waiter.

`-` BĐ HTĐ: S `+` am/is/are (not) `+` PII `+` (by O)

`2.` These postcards are sent to us by our friends.

`-` BĐ HTĐ: S `+` am/is/are (not) `+` PII `+` (by O)

`3.` This story was told to them when they visited her last week.

`-` BĐ QKĐ: S `+` was/were (not) `+` PII `+` (by O)

`4.` This train ticket was ordered for Tim’s mother.

`-` BĐ QKĐ: S `+` was/were (not) `+` PII `+` (by O)

`5.` Her ticket was showed to the airline agent.

`-` BĐ QKĐ: S `+` was/were (not) `+` PII `+` (by O)

`6.` She wasn't invited to my birthday party.

`-` BĐ QKĐ: S `+` was/were (not) `+` PII `+` (by O)

`7.` Khue Van Pavilion was built inside the Temple of Literature.

`-` BĐ QKĐ: S `+` was/were (not) `+` PII `+` (by O)

`8.` Her homework has been done.

`-` BĐ HTHT: S `+` have/has (not) `+` been `+` PII `+` (by O)

`9.` This movie has been watched on TV.

`-` BĐ HTHT: S `+` have/has (not) `+` been `+` PII `+` (by O)

`10.` China has been visited before.

`-` BĐ HTHT: S `+` have/has (not) `+` been `+` PII `+` (by O)

`11.` The ball is being thrown now.

`-` BĐ HTTD: S `+` am/is/are (not) `+` being `+` PII `+` (by O)

`12.` Has cheese ever been eaten `?`

`-` BĐ HTHT: `(?)` Have/Has `+` S `+` been `+` PII `?`

`13.` Have boardgames ever been played `?`

`-` BĐ HTTD: S `+` am/is/are (not) `+` being `+` PII `+` (by O)

`14.` The party tonight is being prepared.

`-` BĐ HTTD: S `+` am/is/are (not) `+` being `+` PII `+` (by O)

`15.` Is a picture being drawn `?`

`-` BĐ HTTD: Am/Is/Are `+` S `+` being `+` PII `+` (by O) `?`

`----------------`

`@` Lưu ý:

`+` Trong câu chủ động với các chủ ngữ “I, They, We, somebody, someone,everybody, everyone,....” thì khi chuyển sang câu bị động ta bỏ By O.

`+` By O đứng trước trạng từ chỉ thời gian và đứng sau trạng từ chỉ nơi chốn.

`*` Kiến thức : Câu bị động

`-` Xác định tân ngữ và chủ ngữ trong câu chủ động:

`->` Tìm tân ngữ và chủ ngữ  trong câu chủ động.

`-` Chuyển tân ngữ thành chủ ngữ câu bị động:

`->` Đặt tân ngữ ở đầu câu để làm chủ ngữ cho câu bị động.

`-` Chuyển động từ thành “be + quá khứ phân từ” trong câu bị động:

`->` Chọn động từ “to be” phù hợp với thì của câu chủ động (ví dụ: am/is/are, was/were, has been, etc.).

`->` Kết hợp “be” với quá khứ phân từ của động từ chủ động.

`-` Thêm “by + chủ ngữ” vào cuối câu bị động (nếu cần)

`*` Answer:

`1,` This dish was brought to me by the waiter.

`2,` These postcards are sent to us by our friends.

`3,` This story was told to them by their grandmother when they visited her last week.

`4,` This train ticket was ordered for his mother by Tim.

`5,` Her ticket was shown to the airline agent by her.

`6,` She was not invited to my birthday party.

`7,` The Khue Van Pavilion was built inside the Temple of Literature by them.

`8,` Her homework has been done.

`9,` This movie has been watched on TV by us.

`10,` China has not been visited by him before.

`11` The ball is being thrown by her now.

`12` Has cheese ever been eaten by you?

`13,` Have boardgames ever been played by her?

`14,` The party tonight is being prepared for by us.

`15,` Is a picture being drawn by her?