1. We stopped playing tennis because of the rain

 (đằng sau có danh từ the rain)

2. It was all because of her that we got into trouble

 (because of + tính từ sở hữu)

3. We had to hurry indoors because it was raining

(đằng sau có it was raining=>dùng because

4. I am late because of the traffic

 (có the traffics là N, dùng because of)

5. We didn’t arrive until seven o’clock because the traffic was terrible (the traffic was terrible là mệnh đề, dùng because)

6. She found the exam easy because she had worked hard during the course (có mệnh đề đnagừ sau => dùng because)

7. He can’t drive because of his illness 

(his illness là N , dùng because of)

8. The restaurant closed down because of the recession

(the recession là N, dùng because of)

9. He found working in Japan very difficult because of the language problem (the language problem là N, dùng because of)

10. He’s very difficult to understand because of his accent

(his accent là N, dùng because of)