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

When the boulders are made of(A)  rock that is different from the bedrock which(B)  they(C)  or the soil of the field rests, they are called(D)  erratics

A. are made of

B. which

C. they

D. are called

Answer 1

Đáp án : B

“which” - > “where” . Ở đây cần một mệnh đề thay để chỉ địa điểm (bedrock)