Exercise 5:
$\text{1.}$ The play has already been watched before.
$\text{2.}$ Our city has been destroyed by the 1999 flood.
$\text{3.}$ His pencil has been used instead by him.
$\text{4.}$ This is the first time such a lovely dog has been seen.
$\text{5.}$ The homework hasn't been done by the student yet.
$\text{6.}$ She has been taken to the hospital.
$\text{7.}$ The meeting has been cancelled .
$\text{8.}$ My chair has been moved.
$\text{9.}$ He has been given a lot of money.
$\text{10.}$ All the students in the school have been invited.
$\text{11.}$ He has been told not to be late again.
$\text{12.}$ The English grammar has been expained by our teachers.
$\text{13.}$ Have the above sentences been finished?
$\text{14.}$ The mugger has been arrested by the police.
$\text{15.}$ Five suspects have been arrested by the police.
* Form: Câu bị động thì HTHT
S + have/ has + (not) + been + Ved/ P2 + (by)
Exercise 6:
$\text{1.}$ Their homework had been finished before they went to the cafeteria.
$\text{2.}$ The housework had been done by her husband before 7 party yesterday.
$\text{3.}$ Before going shopping yesterday, the kitchen had been cleaned by David.
$\text{4.}$ The video game had been played by Wonbin for four hours.
$\text{5.}$ The film hadn't been seen by Ms Nina before.
* Form: Câu bị động thì QKHT
S + had (not) + been + Ved/ P2 + (by)