—The plan for the trip is very important.—I see and he is sure to work it out on time.A.

问题补充：

—The plan for the trip is very important.

—I see, and he is sure to work it out on time.

A. made

B. to be made

C. making

D. to make

答案：

A. made

(答案→)B. to be made

C. making

D. to make

解析：考查不定式用法。句意：—即将被制定的计划是非常重要的。—我明白，它一定会准时公布的。根据句意说明这个计划还没有被制定，不定式表示将来，且使用被动语态的形式。故B正确。