________ an hour every day has made a considerable difference to my health.
--- I’ve nothing on me except this ten-yuan note to donate, I’m afraid. --- Never mind. ______. We really appreciate your assistance.
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.