Some cities have passed laws that allow coal and oil______only if their sulfur c

游客2025-03-13 24

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

转载请注明原文地址:https://www.tihaiku.com/zcyy/3995177.html

相关试题推荐

随机试题

最新回复(0)

MostconsumersinChina’scitieswouldrather"suffersilently"overgrievan