Choose the underlined part that needs correction: The world is becoming more (A) industrialized and the number of animal (B) species that have become (C) extinct (D) have increased.
A.industrialized
B.species
C.extinct
D.have
* Đáp án
D
* Hướng dẫn giải
have increased => has increased, vì the number of + Ns: chỉ số lượng….. => động từ theo sau phải chia ở dạng số ít.