Question

【题目】 Students are supposed _______ school uniforms on school days.

A. wear B. to wear C. wearing

Answer 1

【答案】B

【解析】

试题分析：句意：学生们在上学的日子里应该穿校服。根据句意及题干分析“应该做某事”是be supposed to do sth.，所以此题应选B。