------________ to many people’s expectation, the 2009 UN climate Change Conference didn’t achieve any specific goals. ------ Yes, it’s really disappointing.

—How much is the T-shirt    ?—It is __________ 65 dollars.

Just like fingerprints, each person’s DNA is ________unless he has a twin．

As we all know, independence is very ________ for youngsters because sooner or later they will leave their families and live alone. 

In recent decades, China is becoming one of the most _____countries in the world.