`7.` It was difficult to  deliver the letter because of the wrong address.

`8.` Because of the heavy rain, we can't go for a walk.

`9.` Two cars can't pass each other because of the narrow road.

`-` Because S + V/be + adv/adj, S + V/be.

`→` Because of + cụm danh từ, S + V/be.

$@angelinazuize$
$#Hoidap247$

`-` Because of + V-ing / N + Clause : Bởi vì

`7`.It was difficult to deliver the letter because of the wrong address

`8`.Because of the heavy rain , we can't go for a walk

`9`.Two cars can't pass each other because of the narrow road

`\text{# Kirigiri}`