Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following
Trả lời câu hỏi dưới đây:
Although they are poor and hard, they are _ _ _ _ _ _ _ to their children’s success.
A. làm thoã mãn = content to
B. tự hào.
C. làm vui lòng, thoã mãn = satisfied with
D. khoe khoang. khoác lác