$\text{1.}$ I lost my way because of the thick fog.

$\text{2.}$ He is tired because he stayed up late last night.

$\text{3.}$ We couldn't read the sign on the building because of the great distance.

$\text{4.}$ She will never get success because of her impatience.

$\text{5.}$ He'll be sacked because of being often late for work.

$\text{6.}$ Governments advise giving up smoking because it is harmful for health.

$\text{7.}$ They haven't bought the house because of its small rooms.

$\text{8.}$ He got bard marks because of his incomplete answers.

$\text{9.}$ Maria couldn't return home because she lost all her money.

$\text{10.}$ Because my friend is absent, I have to copy the lesson for him.

$\text{11.}$ A lot of people learn English because of its important.

$\text{12.}$ Tom is often punished because of his laziness.

$\text{13.}$ I was late because of the heavy rain.

$\text{14.}$ They turned the heating on because of the very cold weather.

$\text{15.}$ She has to stay at home because her mother is sick.

* Form:

$\text{Because + S + V, _______.}$

$\text{Because of + N/ V-ing, _______.}$