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[单选题]
Who's-- my grandfather()
A.she ;She's
B.he ; He's
C.he's ; He
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
B、he ; He's
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.she ;She's
B.he ; He's
C.he's ; He
B、he ; He's
A.the;the
B.an;the
C.the;an
D.a;an
My experience ought to be a warning to those who are too (confidence) ______ in their own opinion.
A.that
B.who
C.it
D.which