1. This exercises can be done by Minh (S+modal verb+be+V3/ed+by O)

2.This cake was made by my mother (S+was/were+V3/ed+by O)

3.The house was built in 2020 (by them) (S+was/were+ V3/ed+by O)

4.This film has been seen twice (S+has/have+been+V3/ed)

5.A lot of plants in the yard was grown by Nam (S+was/were+V3/ed+by O)

6.The gate is painted every year (S+am/is/are+V3/ed)

7.The homework have to be done at home (S+modal verb+be+V3/ed)

$\text{1}$ This exercises can be done by Minh . 

→ Bị động thì ĐTKT : S + modal verb + be + Vpp + ( by O ) 

$\text{2}$ This cake was made by my mother . 

→ Bị động thì QKĐ: S + was/were + Vpp + ( by O ) 

$\text{3}$ The house was built in 2020 . 

→ Bị động thì QKĐ: S + was/were + Vpp + ( by O ) 

$\text{4}$ This film has been since twice . 

→ Bị động thì HTHT : S + has/have + been + Vpp + ( by O ) 

$\text{5}$ A lot of flowers are grown by Nam in the yard . 

→ Bị động thì HTĐ : S + is/am/are + Vpp + ( by O ) 

$\text{6}$ The gate is painted every year . 

→ Bị động thì HTĐ : S + is/am/are + Vpp + ( by O ) 

$\text{7}$ The homework has to be done at home . 

→ Bị động thì ĐTKT : S + modal verb + be + Vpp + ( by O )