`1.` Although her foot was injured, she managed to walk to the village.

`2.` Although Mary ate McDonald's regularly, she remained slim.

`3.` Although his legs was broken, he managed to get out of the car before it exploded.

`4.` Although they do not have much money, they live happily.

`5.` Because there was a storm, students have to stay at home.

`-------`

`-`  Because + Clause 1 (S + V + O) , Clause 2 (S + V + O)

`=` Because of + N/ N phrase/ V-ing, Clause 1 (S + V + O) : bởi vì

`->` Chỉ nguyên nhân kết quả.

`-------`

`-` Although/ Though/ Even though  + S + V , S + V ...

`->`  In spite of/Despite + N/V-ing, S + V : Mặc dù ...