—All the teachers went home _________ Mrs. Wang. Why?—Because she had to finish her work.
Listen! Someone _____ songs.
Bob is ________ at the map to find where Beihai Park is.
I think your mother is_____you at the school gate at the moment.
Put the clothes on because it gets ____outside.
--Jim, put the things away and tidy(整理)your room. -- Well, but I have ____ work to do, Dad.