单选题
5.
Which of the italicized parts functions as a subject?
A、
It will scarcely be disputed by his warmest friends
that he was in error
.
B、
The odds are
that he will not do it
.
C、
I can't make up my mind
who should be asked to speak first
.
D、
I wasn't certain
whose house I was in.
【正确答案】
A
【答案解析】
句子成分。That-分句作主语通常用先行it结构，而将that-分句置于句尾，A项符合，为本题答案。B项中斜体在系动词后，为主语补语；C项是介词补足成分，make up my mind后省略了介词about；D项斜体是形容词补足成分。
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