问题
选择题
Our food supply _____. We’d better get some in case there’s ____ left.
A．is running out, none
B．has run out of, none
C．is using up, nothing
D．has used up, nothing
答案
答案：A
本题考查动词的时态和语态。 表示快用完不是已用完;后面有特定范围指食物. run out of和use up此处要用被动语态。