---What ______ the noise, Bill?---Sorry, I broke my glass.
He recorded ________ the chairperson said at the meeting.
_______ of the students in our class _______ money to the quake-hit areas these days.
I always sleep with windows open _______ it is too cold outside.
How _______ the song she sings sounds! I have never_______ a better voice.
--- How much homework has your cousin finished?--- _______ at all. He has sat there the whole morning, doing _______.