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 questions

(A) Although it would take a laboratory analysis (B) to determine the exact proportions of sand, silt, clay, and organic matter in your garden soil, you can get a good idea of what (C) it is by (D) feeling the soil’s texture

A. Although

B. to determine

C. it is

D. feeling

Answer 1

Đáp án C
It is => they are (vì đối tượng mà nó nhắc đến là số nhiều: “proportions of sand, silt, clay, and
organic matter in your garden soil”)