几句句子改被动语态
1：i don't think we should require the students to wear uniforms
i don't think___________________________________________
2:long ago,people gathered wild fruits and other plants for food
long ago___________________________________________________________
3:we must give students the freedom to wear whatever they want to wear
____________________________________to wear whatever they want to wear
4:i deposit about 20 per cent of my pocker money every week
______________________________________every week
6:we will hold a class meeting to discuss how we spend our pocket money
_______________________________________to discuss how we spend our pocket money