Question

9．The students should wear their uniforms at school．（改为同义句）
The studentsare supposed towear their uniforms at school．

Answer 1

分析 学生们应该在学校穿校服．

解答 答案：are supposed to．上文的should表示应该，可以与be supposed to do sth互换，表达的是客观事实用一般现在时，主语the students复数，故are supposed to，故答案是are supposed to．

点评 be supposed to 表示"理应．"强调客观上，"猜想会．"常用于被动语态中
You are supposed to liten to your boss．
He is supposed to work hard．
should 表应该．，强调主观上的原因
You should work hard to catch up with your classmates．
You shouldn't laugh at her．