`1.` My old students sent me a gift.

`2.` The teacher doesn't allow you to cheat in the exam.

`3.` My father is fixing my table.

`4.` How long has Mr. Green used this fax machine?

`5.` The singer's fan didn't recognize him when he was at the restaurant.

`6.` The judges will disqualify him from the competition if he uses drogs.

`7.` They will turn off all the unnecessary lights to save energy.

`8.` Jane's mother prevented her from staying up too late.

`9.` Did Mr. Brown type this document?

`10.` The rescuers found many dead people after the earthquake.

______________________________

`o.` Thì hiện tại đơn`:`

P`:`

$(+)$ S + am/ is/ are + V(pp) + (by O).

$(-)$ S + am/ is/ are + not + V(pp) + (by O).

$(?)$ Am/ is/ are + S + V(pp) + (by O)?

`->` A`:`

$(+)$ S + V(s/es) + O

$(-)$ S + don't/ doesn't + Vinf + O

$(?)$ Do/ Does + S + Vinf?

`o.` Thì quá khứ đơn`:`

P`:`

$(+)$ S + was/ were + V(pp) + (by O).

$(-)$ S + was/ were + not + V(pp) + (by O).

$(?)$ Was/ were + S + V(pp) + (by O)?

A`:`

$(+)$ S + ved/ V2 + O.

$(-)$ S + didn't + Vinf + O.

$(?)$ Did + S + Vinf + O?

`o.` Thì hiện tại tiếp diễn:

P`:`

$(+)$ S + am/ is/ are + being + V(pp) + (by O).

$(-)$ S  + am/ is/ are + not + being + V(pp) + (by O).

$(?)$ Am/ Is/ Are + S + being + V(pp) + (by O).

A`:`

$(+)$ S + am/ is/ are + V-ing + O.

$(-)$ S + am/ is/ are + not + V-ing + O.

$(?)$ Am/ Is/ Are + S + V-ing + O?

`o.` Thì hiện tại hoàn thành:

P`:` $(?)$ Have/ Has + S + been + V(pp) + (by O)?

`->` A`:` Have/ Has + S + V(pp) + O?

`o.` Thì tương lai đơn:

P`:` $(+)$  S + will be + V(pp) + (by O).

`->` A`:` $(+)$ S + will + Vinf + O.

`-` Lấy tân ngữ trong câu bị động làm chủ ngữ trong câu chủ động và chủ ngữ trong câu bị động làm tân ngữ trong câu chủ động sau đó áp dụng công thức.

1.=> A serious road acccident caused a traffic chaos yesterday

2.=>  I had to get the mop since I spilled my juice.

3.=>He walked slowly because of his bad leg.

4.=> A peacock will spread his feathers so he will attract a female.

5.=> The cyclone has come, which resulted in many thousands of deaths.

6.=>Eating too much sugar can lead to health problems.7.=> Our departure delayed because of the bad weather.

8.=> The fire resulted in the damage to our property.

9.=> I think they are not coming since they haven't reply our invitation so far

10.=> The poor road condition has caused several accidents.

Bạn tham khảo nhé