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

Some parents think that it’s unnecessary for students to work ________ home in their free time.

A. for

B. on

C. in

D. at

Đáp án
D. at

Câu hỏi thuộc Bài tập:

ĐỀ SỐ 20 - VŨ MAI PHƯƠNG