Our food supply . We'd better get some in case there's none left.A. is running outB. has r

问题补充：

Our food supply . Wed better get some in case theres none left.

A. is running out

B. has run out of

C. is using up

D. has used up

答案：

(答案→)A. is running out

B. has run out of

C. is using up

D. has used up

解析：

试题分析: 句意：我们的食物供应快要没了。咱们最好去买些来以防什么也没有了。根据后句内容可知食物是快吃完了，排除BD选项；而use up 是及物动词短语，run out 是不及物动词短语，主语可以是物，故答案选A。