问题详情:
It's high time that we________to environmental protection and ecological improvement
A.have devoted B.devoted
C.are devoting D.had devoted
【回答】
B [考查虚拟语气。句意:该是我们致力于环境保护和生态改善的时候了。在It's(high/about)time that...结构中应使用虚拟语气,that后的谓语动词用一般过去时或should+动词原形。]
知识点:虚拟语气
题型:选择题