问题

What shall human beings do if oil_______sometime in the future?

A:will run out
B:runs out of
C:runs out
D:will be run out

正确答案是：

同类题型

Ihave a dog. _____ name is Wangwang.

Tom was so wild about computer games that he wouldstay online for ten hours ___every day

In the past I often wrote _____ my parents about my study at school, but now I e-mail them ____ rita@sunshinetown.com.cn or call them ______ 5551 6789 .

He will give me a message when he ________ arrive there.

The days are gone__________ physical strength was all you needed to make a living.