Multiple choice Directions: Choose the part in which there is an error: 50 percent of the houses has been damaged and a large number of people have been rendered destitute Reveal answer Fill a bubble to check yourself B Correct answer Explanation The error is in part B. With 'percent of' structures, the verb must agree with the noun following 'of'. Since 'houses' is plural, the verb should be 'have been damaged', not 'has been damaged'.