1.Mary didn't go to school because of her illness.
2.He failed the examination because of his laziness.
3.All the students love the principal because of his kindness
4.The president was unable to continue his work because of his illness.
5.He retired last month because of his illness.
6.Because my mother was ill, I stayed at home to take care of her.
7.Because he was wise and good-hearted ,everybody loved him and usually came to see him for advice .
8.Because we were tired,we fell asleep in front of the TV.
9.The flight was cancelled because it was fog.
10.Many people refused to do Paula's job because it was dangerous.
#goodluck
