. We can hope the best but we must prepare the worst at the same time.A. for; forB. for;

问题补充：

. We can hope the best but we must prepare the worst at the same time.

A. for; for

B. for; /

C. /; for

D. /; /

答案：

(答案→)A. for; for

B. for; /

C. /; for

D. /; /

解析：考查介词。hope for希望；期待；prepare for为…..准备。句意：我们期望最好，但同时我们必须做更坏的准备。