—Does your grandpa often walk the dog after supper? — Yes, _________ bad weather stops him.

Give me your telephone number ____I need your help.

 It’s widely known that you won’t achieve success _____ you work hard.

—Avatar is ______ that I have seen it for three times．—Though it is very popular all over the world，_____it didn’t win the best film of Oscar this year．  

I will never forget that terrible accident _______ it happened so long  ago.