-Haven’t we met each other at ________ party?-Yes, but I can’t remember whether it is _________ Christmas when we were in college.
He was so foolish ____ him about it.
Would you be ___ to show me the way to the Summer Palace?
Sometimes our opinions differ _________ what we choose to observe and how we deal with what we’ve observed
“You went late _________ the stadium yesterday evening, didn’t you?” “Yes, my wife was a little late _________ the supper.”
Would you tell me what subject you were good _____ school?