Whentheteacheraskshim,healways

问题详情：

When the teacher asks him, he always ____.

             A. keep silent   B. keep silently    C. keeps silent           D. keeps silently

【回答】

C    “he”是第三人称单数，A、B可排除；keep为连系动词，后需跟形容词作表语。

知识点：主谓一致

题型：选择题