2018-2019学年度人教版必修五 Unit 1 Great Scientists Period4Grammar 课件(共38张PPT)
2018-2019学年度人教版必修五 Unit 1 Great Scientists Period4Grammar 课件(共38张PPT)第1页

disappointed \ discouraged

A broken heart

polluted water

an injured person

crowded people \ buses

2018-2019学年度人教版必修五

Period4GrammarPast Participle