No matter how long is your life, you will, at best, be able to read only a few books of all that have been written, and _____ few you do read should include _____ best.
London is the city ____ has got the chance to host the 2012 Olympic Games .
____hard ,and you will make greater progress.
There was a time_____we went to the country and stayed with the farmers there.
.---I’m going to the States for further study. ---How long ____ you ___there?
. I, who, ________your classmate, will support you forever.