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. _____ can be enjoyed until you have a deep understanding of the low-carbon lifestyle.

There are many people _______ behave so well all time _______they are respected
by everyone around.

I get into the habit of surfing the Internet___I can find a lot of useful information.

Whether ways will be found to help China _______ the current world financial crisis is just _______ worries the public.

. Such women _____ know Tom thought he was charming.

Earth is a rocky planet _______ liquid water, which is necessary for life, can exist.

How can they learn anything useful ______ they spend all their spare time playing online games?

．The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.

．China is playing an important role in the world. That’s_______Laura has come to study Chinese.

She is very dear to us. We have been prepared to do_______it takes to save her life.