The cause of the accident may never______ (discover) in spite of the effort of the police.

admin2009-05-28  45

问题 The cause of the accident may never______ (discover) in spite of the effort of the police.

选项

答案be discovered

解析 动词的语态。情态动词后使用动词原形,又因主语与谓语是被动关系,所以本题用被动语态。
转载请注明原文地址:https://kaotiyun.com/show/85vK777K
0

最新回复(0)