---We must act now because time is .
---Yes. Let’s start.
A. ing out
B. giving out
C. cutting out
D. running out
网友回答
A. ing out
B. giving out
C. cutting out
(答案→)D. running out
解析:A. ing out 出版 B. giving out分发 C. cutting out 切断,删去 D. running out用完,耗尽;句意:我们现在必须行动了,因为时间将要耗尽了。是的,让我们开始吧。故选D