1. Mary didn't go to school because he was ill.
->.............................because of....................................
3. All the students love the principal because he is very kind.
- ........................because of.......................................
4. The president was unable to continue his work because he was ill.
-> .........................because of....................................
5. He retired last month because he was ill.
-> .............................because of.............................
6. Because of my mother's illness, I stayed at hom to take care of her.
-> Because...........................................
7. Everybody loved him and usually came to see him for advice because of his wisdom nd good-heartedness.
=> Because ................................................
9. The flight was cancelled because of the fog.
->.........................................because..........................................
10. Many people refused to do Paula's job because of the danger.
-> ........................................because.........................................
1. Mary didn't go to school because he was ill.
->Mary didn't go to school because of his illness
3. All the students love the principal because he is very kind.
- All the students love the principal because of his kindness
4. The president was unable to continue his work because he was ill.
->The president was unable to continue his work because of his illness
5. He retired last month because he was ill.
-> He retired last month because of his illness
6. Because of my mother's illness, I stayed at hom to take care of her.
-> Because my mother was ill, I stayed at hom to take care of her.
7. Everybody loved him and usually came to see him for advice because of his wisdom nd good-heartedness.
=> Because he was wise and good-hearted, everybody loved him and usually came to see him for advice
9. The flight was cancelled because of the fog.
->The flight was cancelled because it was foggy
10. Many people refused to do Paula's job because of the danger.
-> Many people refused to do Paula's job because it was dangerous