We had a hard life in my childhood.A. at a time 　B. at all timesC. at one timeD. at any t

问题补充：

We had a hard life in my childhood.

A. at a time

B. at all times

C. at one time

D. at any time

答案：

(答案→)A. at a time

B. at all times

C. at one time

D. at any time

解析： at a time曾经一度； at all time总是； at one time 先前，以前；at any time任何时候。