Bài tập 1: Điền Because hoặc Because of.
1. We stopped playing tennis because of the rain
2. It was all because of her that we got into trouble
3. We had to hurry indoors because it was raining
4. I am late because of the traffic
5. We didn’t arrive until seven o’clock because the traffic was terrible
6. She found the exam easy because she had worked hard during the course
7. He can’t drive because of his illness
8. The restaurant closed down because of the recession
9. He found working in Japan very difficult because of the language problem
10. He’s very difficult to understand because of his accent