既可以作为大多数肉孢子虫中间宿主又可以作为其终末宿主的是（）

A.人

B.草食动物

C.猪

D.禽类

E.犬科动物

If he ______ more carefully, that accident _______ and he _______ .[ ]

A. were driving; wouldn’t happen; wouldn’t die  

B. had driven; wouldn’t have happened; wouldn’t die

C. had driven; wouldn’t have happened; wouldn’t have died

D. should have driven; wouldn’t have been happened; wouldn’t have died