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

Students often spend a great ............ of time studying for exams.

A. number

B. plenty

C. variety

D. amount

Đáp án
D. amount

Câu hỏi thuộc Bài tập:

TN-PART1-20KEY