The number of parents who want to teach their own children in the U.S. is _____. A. remaining unchanged B. remaining the same C. going up D. going down
Giải thích
Đáp án C
Thông tin nằm ở câu đầu đoạn 1: “Increasing numbers of parents in the U.S. are choosing to teach their children at home.” increasing: (a) ngày càng tăng, tăng dần