Elderly people,_______, require constant attention.
A. many of whom are financially dependent on the government
B. a large number's depending on government aid
C. and many of them depend on the government to finance them
D. who are dependent many of them on the financing from the government
Đáp án là A. Câu hỏi về mệnh đề quan hệ: Sau giới từ, chúng ta sử dụng “whom” thay thế cho tân ngữ chỉ người “elderly people”