Learning experiences happen to us throughout our lives, and not too long ago, I had _______ that I would like to share.
_______________made our school proud in 2011 was ____________ more than 40% of the students had been admitted to key universities.
So far this year we ______ a fall in house prices by between 5 and 10 percent.
Little Tom admitted ______ in the examination, ______ that he wouldn’t do that in the future.
World Wildlife Fund ______ very much the efforts that China has made to protect endangered species from being further endangered.
It’s wise to forget things which aren't worth ______.