I wonder how long it will take you such a hard task within so little time.A. completeB. to

问题补充：

I wonder how long it will take you such a hard task within so little time.

A. complete

B. to complete

C. completing

D. completed

答案：

A. complete

(答案→)B. to complete

C. completing

D. completed

解析：考查非谓语动词。句意：我想知道在如此短的时间内完成如此艰巨的任务要用你多长时间？不定式做补足语表示具体的将要进行的动作，结合语境可知选B。