赞题库-背景图
单项选择题

Passage Two
Questions 20 to 23 are based on the passage you have just heard.

A. Because teaching in students’ later years can achieve the best academic results.
B. Because languages and mathematics are best learned in students’ later years.
C. Because children need more time to take part in outdoor activities.
D. Because teaching resources are richer in higher grades of primary schools.