People said _____ the puma.(这个问题原先是有文章的,文中说了：那些人看见美洲狮.)
A.to have seen    B.to see    C.they saw   D.they had seen
（文中原句：Still ,I am glad the bell is working again.）
______,I am glad the bell is working again.
A.Yet     B.Good   C.Just the same    D.Even now


麻烦大家帮我选出正确答案并简要说说为什么.