He talked at the top of his voice,______ he drew noboby's attention.
问题描述：
He talked at the top of his voice,______ he drew noboby's attention.
a.instead b.so c.yet d.though 选那个?
答
yet 填though.意思是“尽管” so所以 这句子有问题 He talked at the top of his voice___he drew nobody’s attention.填yet