Question 61: farm => farmer (to refer to the person)
Question 62: mean => means (to indicate multiple means of help)
Question 63: work => works (to maintain subject-verb agreement)
Question 64: entertain => entertainment (to use the correct form of the word)
Question 65: Her => Their (to be consistent with the subject)
Question 66: good => better (to accurately describe the improvement)
Question 67: Berofe => Before (to correct the spelling)
Question 68: universityes => universities (to correct the spelling)
Question 69: have => has (to match the singular subject)
Question 70: hardly => hard (to use the correct adverb form with "work"