Student or Learner
Hello, the answer key says the error in this sentence is that there should be "have" between "they" and "formed", as in "they have formed earlier...". Why is that? And why does "another reason" take plural form--"are"? Thank you.
Another reason for the success of the aged elite are the traits they formed earlier in their lives.
Thank you, but I don't quite understand. Why is it correct to link verb with the object?