专升本考试

【单选题】The world's oil supply
A．haven been gradually being exhausted
B．is being gradually exhausted
C．is gradually exhausted
D．has gradually exhausted
网考网参考答案：B
网考网解析：
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。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>