-How much do you know about the Youth Olympic Games to be held in Nanjing?
-Well, the mediait in a variety of forms.
.Canada, ________ second to Russia in size, is ________ home to all kinds of animals and plants, making it famous for its natural scenery.
The trapped car could hardly make any advance and ________ could it draw back in the mud.
.--- How would you like your tea? --- ______.
.Mr. Brown has a strange way of writing. This is a notice from him, but no clear ______ of what he has written can be made at all.
Someone who lacks staying power and perseverance is unlikely to ______ a good researcher.