1.The student must hand in their compositions before school is over.改为被动语态
问题描述:
1.The student must hand in their compositions before school is over.
改为被动语态
答
The students' compositions must be handed in before school is over
答
the compositions must be handed in before school is over(by the students)
答
The student's compositions must be handed in before school is over.
答
The students' compositions must be handed in before school is over.