Only when I left home to go to college ___ how much my mother had done for me.
September 30 is the day ______ which you must pay your bill.
. ----I’d like some more beer. ----Sorry, there’s ______ left.
I cannot get my son to understand that extra time _______ now will pay off in the future.
____, Mother will wait for him to have dinner together.
I know nothing about the young lady ____ she is from Beijing.