-We are afraid we can't finish the task a month. -Take your time, but next month

—We are afraid we can't finish the task ________ a month.

—Take your time, but next month you'll have a new one.

试题答案

A　考查介词。within“在……里；在……之内”，后常接表示某个特定范围的名词。within a month在一个月内。