Some cities have passed laws that allow coal and oil ______ only if their sulfur

游客2024-01-15 54

问题 Some cities have passed laws that allow coal and oil ______ only if their sulfur content is low.

选项 A、burning
B、to burn
C、being burned
D、to be burned

答案 D

解析本题考查的是allow sth. to be done，主动形式是allow sb. to do sth. ，此处是允许人们在硫含量低的情况下燃烧煤和石油，所以它们是被燃烧，用被动形式。

转载请注明原文地址:https://www.tihaiku.com/zcyy/3363830.html

相关试题推荐

随机试题

最新回复(0)

Afteralong______thebillwaspassedbythepeople’scongress.A、argumentB、deba