    Sentence 1:""We ‘re ‘ptimistic we cant, deliver. the  vaccine ta, these people in time.jo do goad , * said. Dr  avid: Fleming’ of the ‘Centers for Diséase Control ‘andl  revention    jenténce 2° We ‘re optimistic we can deliver the  vaccine tg thése people in'time to-do good .”* said Dr:  avid Fleming: "the (COC. 's deputy director lor Public  lealth and Science