I,young,people,I,wave,meet,when,"hello",say,and,should(.)

问题描述:

I,young,people,I,wave,meet,when,"hello",say,and,should(.)
六年级单元双测第一课第二张卷纸第九题

I,young,people,I,wave,meet,when,"hello",say,and,should(.)
When I meet young people,I should wave and say "hello".