Idon’t know the man _______ is looking after the old woman.

________ and short of breath, Andy and Ruby were the first to reach the top of Mount Tai.

下列句子中词类用法相同的一项是（ ）

He wondered if he could slip out of the lecture hallwithout anyone _____.

I’m sure Andrew will come out first in this speech competition.—I think so. He ______ for it for months.