Mark the letter A, B, C or D to indicate the correct answer to each of the following questions. 5. Fish were among the earlie

Mark the letter A, B, C or D to indicate the correct answer to each of the following questions.
5. Fish were among the earliest forms of life. Fish ________ on earth for ages and ages.
A. existed B. are existing C. exist D. have existed
6. The current constitutional problem is ________ by the top legal minds in the country.
A. studying B. being studying
C. being studied D. been studied
7. The professor told me that I was doing well, ________ my final grade was awful!
A. so B. therefore C. in spite of D. yet
8. I must hurry. I want to get home ________ to see the football match on television.
A. on time B. in time C. by time D. at time