$*16:$ Because of the small rooms, they haven’t bought the house.

$*17:$ Because of his incomplete answers, he got bad marks.

$*18:$ Maria couldn’t return home because she lost all her money.

$*19:$ Because my friend was absent, I have to copy the lesson for him.

$*20:$ Because of English importance, a lot of people learn it

$------------------------$

    *`Because:`

Cấu trúc: $Because+ S + V + O, S + V + O$

hoặc $\text{S + V + O, because S + V + O}$

$------$

    *$\text{Because of:}$

Cấu trúc: $\text{Because of + noun/ pronoun/ noun phrase}$

$\text{( Xin hay nhất, nếu đc ạ )}$

`16.` Because of the small rooms, they haven't bought the house.

`17.` Because of his incomplete answers, he got bad marks.

`18.` Because Maria lost all her money, she couldn't return home. 

`19.` Because my friend was absence, I have to copy the lesson for him.

`20.` Because of its important, a lot of people learn English. 

`@` Cấu trúc: Because + S + V , S + V 

`=` Because of + N/ N.phr/ V-ing , S + V

`=>` Dùng để diễn tả mối quan hệ nguyên nhân - kết quả giữa hai mệnh đề.