1.Studentsshould beallowedtohavepart-timejobs.
否定句:Studentsshouldnotbeallowedtohavepart-timejobs.
一般疑问句:Shouldstudents beallowedtohavepart-timejobs
回答:No.theyshouldn't.否定 Yes,theyshould.肯定
2.Sixteen-year-oldsshouldbeallowedtochoosetheirownclothes
否定句:Sixteen-year-oldsshould notbeallowedtohavepart-timejobs.
一般疑问句:Shouldsixteen-year-olds beallowedtochoosetheirownclothes?
回答:No.theyshouldn't.否定 Yes,theyshould.肯定