I have many friends, __________some are businessmen。A of them B of whose C of which D of whom
________a slight chance that Guo Jingjing will take part in the 2010 London Olympic Games.
.The cousins are alike in age, but__________they are as different as day and night.
In America, if__________friend has invited you to drop by anytime, it is__________best to call before visiting to make sure it is convenient for him.
---I’m going to Appleby tomorrow. ---_____________! I’m going up there too.
---I'd like to the cinema with you, Dad. ---Sorry, my darling, but this film is _____ for adults only.