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 |
相关知识点
推荐套卷
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 |