(单选题)
To be ______, they have to think about the future and deal with the problems involving waste water.
A.sustainable
B.authentic
C.critical
D.innocent
参考答案:A
参考解析:
考查形容词辨析。句意:为了可持续发展,他们必须考虑未来,并处理废水问题。sustainable意为“可持续的”;authentic意为“真实的”;critical意为“批判的”;innocent意为“无辜的;天真的”。根据句意可知,只有处理污水,才能有未来的可持续发展。故选A。
知识点: