31. What is the main idea of the passage?
A. All classes will be taught online in the future.
B. Teachers will help students from home in the future.
C. Kids won’t have to go to school in the future.
D. Computers will change education in the future.
Bạn đang xem 31. - Bộ đề thi Tiếng Anh lớp 9 Học kì 2 không có đáp án (15 đề)