1) Black flowers are rare.
2) My grandfather was rational.
3) My father retired from his work last week.
4) Life of the past was simple.
5) Many schools in the UAE are typical.
6) My aunt works voluntary work.
7) I volunteer to help any person want me.
8) Smoking is harmful to health.
9) Sugar increases rate of the diabetes.
10) I was enthusiastic to winner in the competition.