问题详情

The world's oil supply


A、haven been gradually being exhausted

B、is being gradually exhausted

C、is gradually exhausted

D、has gradually exhausted

时间:2022-01-01 12:42 关键词:

答案解析

B
10.答案为B  世界石油供应量正在逐渐被耗尽。该题谓语动词应使用正在进行时的被动态,结构是am/is/are+being+过去分词。