Because of + N / NP/ Ving, clause: bởi vì 

Clause + so + clause: vì vậy

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3. Because of his serious illness, he can't go to school today.

4. We can't swim in this river because of the polluted water.

5. Because of their good performance, they won the prize.

6. Because of his good looks, he is popular with many girls.

7. We have to wear masks in the streets because of too much exhaust fume.

8. Because of the bad traffic, we arrived too late.

9. Because of the interesting book, I read it many times.

10. Because of Mai's laziness, she failed the final exam.

11. I want to travel around the world, so I learn English.

`color{orange}{~LeAiFuRuiHuiBao~}`