She is ....... student in my class.
A. most hard-working
B. more hard-working
C. the most hard-working
D. as hard-working
Đáp án đúng: C
Dịch: Cô ấy là học sinh chăm chỉ nhất lớp tớ.
Choose the best answer to complete the sentence
She is ....... singer I've ever met.