It'shightimethatwe

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