Đáp án:

`13,` A large area was destroyed in Japan by the tsunami last year.

`14,` A speach is being made by the Prime Minister at the moment.

`15,` I wasn't invited to the birthday party.

`16,` English is spoken in many countries over the world.

`17,` These exercises must be finished before `4` o'clock.

`18,` A new hospital has been built near airport.

`19,` I was given manymany exercises by my teacher.

`20,` This house isn't going to be bought.

`21,` He is usually brought sandwiches at lunch time by his wife.

`22,` Rice is exported to many countries by Vietnam.

`23,` Will the letter be posted on the way to work by you?

`24,` A better solution can not be given to this problem.

Giải thích:

Bị động:

- Hiện tại đơn `:` S + is / am / are + V3 / PII ( by O ).

- Hiện tại tiếp diễn `:` S + is / am / are + being + V3 / PII ( by O ).

- Hiện tại hoàn thành `:` S + has / have + been + V3 / PII ( by O ).

- Quá khứ đơn `:` S + was / were + V3 / PII ( by O ).

- Tương lai đơn `:` S + will + be + V3 / PII ( by O ).

- Tương lai gần `:` S + is / am / are + going to + be + V3 / PII ( by O ).

- Modal verbs `:` S + modal verbs + be + V3 / PII ( by O ).

`13,`

The tsunami destroyed a large area in Japan last year.

$\color{red}{\text{Answer}}$

`->` A large area was destroyed in Japan by the tsunami last year.

`14,`

The Prime Minister is making a speech at the moment.

$\color{red}{\text{Answer}}$

`->` A speach is being made by the Prime Minister at the moment

`15,`

They didnt invite me to the birthday party.

$\color{red}{\text{Answer}}$

`->` I wasn't invited to the birthday party.

`16,`

People speak English in many countries over the world.

$\color{red}{\text{Answer}}$

`->` English is spoken in many countries over the world

`17,`

You must finish there exercises before 4 oclock.

$\color{red}{\text{Answer}}$

`->` These exercises must be finished before 4 o'clock

`18,`

They have built a new airport.

$\color{red}{\text{Answer}}$

`->` A new hospital has been built near airport

`19,`

My teacher used to give me many exercises.

$\color{red}{\text{Answer}}$

`->`  I was given manymany exercises by my teacher

`20,`

He isnt going to buy this house.

$\color{red}{\text{Answer}}$

This house isn't going to be bought.

`21,`

His wife usually brings him sandwiches at lunch time.

$\color{red}{\text{Answer}}$

`->` He is usually brought sandwiches at lunch time by his wife.

`22,`

Vietnam exports rice to many countries.

$\color{red}{\text{Answer}}$

`->`  Rice is exported to many countries by vietnam

`23,`

Will you post this letter on the way to work?

$\color{red}{\text{Answer}}$

`->` Will the letter be posted on the way to work by you?

`24,`

Nobody can give a better solution to this problem.

$\color{red}{\text{Answer}}$

`->` A better solution can not be given to this problem

________________________________________________

`@` Công Thức Câu bị động:

 `->`  Câu bj động `"` Thì qkđ `"`

S(O) `+` was/were `+` V3 `+` by `+` S.

`->`  Công thức câu bị động từ quá khứ đơn:

`->` S + tobe + V_ed/V3 + (by sb) + thời gian

`->` Công thức câu bị động từ hiện tại hoàn thành:

`->`S + have/has + been + V_ed/V3 + (by sb).

Câu bị động ( thì TLG, thể phủ định): S+ is/ am/ are+not+ going+ to+ be+ Vpp+ [ by O]+...

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$\color{red}{\text{\BẢO TRÂM}}$