问题
选择题
—We________gas.I'm afraid we can't go much further.
—I know there's a gas station ahead.Sure it will last us until we get there.
A．are running out
B．have run out
C．are running out of
D．have run out of
答案
答案：C
考查时态和动词词组的用法。此处为现在进行时表示“将来”的概念，表示“汽油快用完了”。run out意为“用完，耗尽(某物)”，后面跟宾语时须加上of，故选C项。