If we keep wasting so much energy, ________are that our oil wells will dry up an

题干

If we keep wasting so much energy, ________are that our oil wells will dry up and the environment will be destroyed.

A．problems

B．difficulties

C．questions

D．chances

上一题下一题 0.85难度单项选择更新时间:2014-03-26 05:18:41

小学学科试题库

初中学科试题库

高中学科试题库