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

Câu hỏi

This book is useful for intermediate students, _______?

A. isn’t it

B. wasn’t it

C. was it

D. is it

Đáp án
A. isn’t it

Câu hỏi thuộc Bài tập:

ĐỀ SỐ 6 - VŨ MAI PHƯƠNG