REWRITE:
1.Cars cause poluttion but people still want them
->Although............................................................
2.Although his leg was broken ,he managed to get out of the car
->In spite.......................................................................................
3.The café was crowded ,but we found a table
->Although..........................................................
4.She was seriously ill but she enjoyed life very much
->Although........................................................................
5.He crashed his car although he drove carefully
->Despite........................................................................
6.Although the weather was very hot , they continued playing football
->In spite of.....................................................................................
7.They got wet to the skin because of heavy rain
->It rained......................................................................
8.Our guests arrived late because of the heavy rain
->Because...........................................................
9.Because of my friends's absence, I have to copy the lesson for him
->Because..................................................................................
10.This boy isignorant because he is lazy
->Because of................................................
11.My friend was absent because of his illness
->Because.........................................................
12.Since he was careless, Tim lost his job
->Because of..................................................