Mark the letter A, B, C, D on your answer sheet to indicate the underlined part that needs correction in each of the following questions
Mark the letter A,B,C,D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
1. School children in (A)_the same grade_in (B)_vietnamese schools (C)_are_usually (D)_the same old _as their classmates.
2. Mrs.Adam was (A)_suprise_that (B)_her_son and his friend (C)_has gone _to the mountains (D)_to ski_.
3. (A)_An understand_of calculus (B)_is_essential to (C)_the study _of (D)_engineering.