`5` Many old houses were restored in Hoi An in 2008 

`-` Bị động thì QKD : S + was/were + Vpp + ( by O ) 

`6` All my homework are done on my computer

`-` Bị động thì HTD : S + is/am/are + Vpp + ( by O ) 

`7` English is spoken around the world 

`-` Bị động thì HTD : S + is/am/are + Vpp + ( by O  ) 

`8` Did you use to go to the beach when you lived in Nha Trang ? 

`-` Did + S + use to + V-inf + O ? 

`9` Mr Nam used to go to work by motorbike , but now he goes to work by bus

`-` used to + V-inf : đã từng làm gì 

`10` There used to be traffic jams in this street during rush hours , but now the street becomes wider

`-` used to + V-inf : đã từng làm gì 

Exercise `14` :

`5.`Many old houses in Hoi An were restored in 2008.

`=>`Bị động với quá khứ đơn : S + was/were (not) + Vpp + (by O)

`6.`All my homework is done on my computer.

`=>`Bị động với hiện tại đơn : S + am/is/are (not) + Vpp + (by O)

`7.`English is spoken all around the world.

`=>`Bị động với hiện tại đơn : S + am/is/are (not) + Vpp + (by O)

`8.`Did you use to go to the beach when you lived in Nha Trang ?

`=>`Did + S + often/usually + V bare ? 

`=`Did + S + use + to V_inf ? ( Ai đã từng làm gì, còn giờ thì không phải không ? )

`9.`Mr. Nam used to go to work by motorbike, but now he goes to work by bus.

`=>`S + often/usually + V2/ed

`=`S + used + to V_inf : ai đã từng làm gì, còn giờ thì không

`10.`There used to be traffic jams in this street during rush hours, but now the street becomes wider.

`=>`There was/were + N(s)..., but now .....

`=`There used to be + N(s)... : đã từng có gì, còn giờ thì không