Question

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.(D)

A basic (A)knowledge of social studies,  such as history(B) and geography, are (C)considered a basic part of the education of every child(D). 

A. basic

B. history

C. are 

D. child

Answer 1

A

“are” -> “is”

Chủ ngữ là A basic knowledge – số ít, nên động từ to be đúng là is