10.—Did you make sense of what the man said just now?—No, his meaning didn’t_______. Would you explain it to me?
Mary ______ my letter; otherwise she would have replied before now.
People are advised not to drive after drinking, but __ seems not to help a lot.
Nobody can achieve anything of real significance _____ he works very hard.
You have to balance the advantages of living in the country ______ the disadvantages.
The 30th Olympic Games, ______ between July 27 and August 12 in 2012, will take place in London.