－Where did you put the car keys?

－Oh, I ______ I put them on the chair because the phone rang as I ______ in. [ ]

A. remembered; come

B. remembered; was coming

C. remember; come

D. remember; was coming

关于流感的预防，叙述正确的有（）

A.预防接种是主要预防措施

B.老人和慢性心、肺疾病患者可接种灭活疫苗

C.健康成人可接种减毒活疫苗

D.没有灭活疫苗时，COPD患者也可接种减毒活疫苗

E.我国甲型H1N1流感（2009）疫苗为减毒活疫苗