In each of the following questions, find out which part of the sentence has an error. If there is no mistake, the answer is 'No error'
Six kilometers(a)/ are a(b)/ long distance(c)/ No error(e)
He has requested to(a)/ the manager once again to(b)/ mediate in(c)/ the dispute and help settle(d)/ No error(e)
Of all(a)/ the other students(b)/ in the class, the teachers were unanimous(c)/ that Rajesh was the most versatile.(d)/ No error...