问题
选择题
---Have we ________ food?.
--- Yes, ______. We’d better buy some.
A．run out of; we have run it out
B．run out of; our food has run out
C．run out; our food has been run out
D．run out; our food has run out
答案
答案：B
考查动词用法。run out of为及物动词词组，故后应当接物；而run out为不接物动词词组，故不能用被动语态，根据题意，应选择B。