IV.

1.She lives in Nigeria

2.Peter is now living in a beautiful new house in the country

3.His house was completed five months ago

4.Yes,it does

V.

1.We used to have a lot of friends when we lived in the country

2.Jack isn't old enough to ride a motorbike

3.Nga enjoys listening to traditional stories

4.The school is behind my house

$IV$

$1.$ Peter's sister lives in Nigeria.

→ Câu nhận biết: She lives in Nigeria. 

$2.$ Peter is now living in a beautiful new house in the country.

$3.$ His house was completed five months ago

$4.$ Yes, it does.

→ Câu nhận biết: The house has many large rooms and there is a lovely garden.

$V$

$1.$ We used to have lots of friends when we lived in the country.

→ Used to + V nguyên thể: dùng để diễn tả một thói quen, hành động đã xảy ra trong quá khứ và hiện tại không còn nữa.

$2.$ Jack isn't old enough to ride a motorbike.

→ S + Tobe not + Adj + enough + (for sb) + to V-inf 

$3.$ Nga enjoys listening to traditional stories.

→ Enjoy + V-ing: thích thú làm việc gì đó

$4.$ The school is behind my house.

→ In front of (ở đằng trước) >< Behind (đằng sau)