Question

Mark the letter A,B,C or D on your answer sheet to show the underlined part that needs correction in each of the following question

There are a number of (A) reason why population (B) is concentrated in temperate regions, but the wide variety and (C) availability of animal and vegetable life may be (D) the most important

A. reason

B. is concentrated

C. availability

D. the most important

Answer 1

Đáp án : A

A: reason -> reasons

There are a number of + N (số nhiều)