______ leaves the room last ought to make sure that the windows are closed and t
题型：不详难度：来源：
______ leaves the room last ought to make sure that the windows are closed and the door locked.| A．Whoever | B．Who | C．Who will | D．Those who |
|
答案
| A |
解析
试题分析：通过分析句子结构，可知这个句子中含有一个主语从句，且引导词在从句中作主语，表示任何一个人，故选A。
点评：首先要分析清楚句子结构，根据从句在整个句子中所作的成分来判断是什么从句，然后根据相应的语法规则答题。在名词性从句中，看引导词在从句中有没有担当成分，有没有具体含义，来确定引导词。 |
举一反三
| _______ parents say and do usually has a life-long effect on their children. |
| __________knowledge comes from practice is known to all. |
thecity’spublicschoolsystemshouldbeopentothechildrenofmigrantworkershas become the focus of discussion.| A．That | B．If | C．What | D．Whether |
|
—Mary looks down today. What is up?
—Well，________happened between Mary and me is none of your business.| A．wherever | B．whoever | C．whatever | D．no matter what |
|
| It isn"t decided yet _______ we will attend the meeting. |
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