Luckily, more and more people in China are __________ to keep their_______ down in public.

he world is paying much more attention to,obviously,China says and does.

As far as I am concerned, education is about learning and the more you learn, _____.

There are many factors that _________ thepopularity of the 3G cell phoneHigher speed of surfing the Internet is one

______ (T/t)hey were still working in the field ______ it rained heavily,