Question

（）the middle () the day ,we have lunch () school.A:On ,in ,a

Answer 1

填 C :In ,of ,at

（In）the middle (of) the day,we have lunch (at) school.

In the middle of the day 是 “中午” 的固定表达方式.

at school “在学校”,但未必“在学校里面” (in school)