Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions This class, ___________ is a prerequisite for microbiology, is so difficult that I w...

Câu hỏi :

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions

A. that

B. when

C. where

D. which  

* Đáp án

D

* Hướng dẫn giải

Đáp án D. which

Mệnh đề quan hệ: which thay thế cho ‘this class’

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