问题
选择题
Russia’s president fires senior military officers for failing to stop a naval base _________ by wildfires that have killed 48.
A．being swept
B．swept
C．to be swept
D．having swept
答案
答案：A
考查非谓语动词。stop...from doing,其中from可以省略变成stop... doing...意思是组织做某事。这里意为‘阻止海军基地被大火烧毁’所以要用被动语态be done，于是就变成了‘stop a naval base being swept’。