. China won 100 medals in the Beijing Olympic Games, which are almost ______ those of the Sydney Olympic Games.

In high pace of life, we can see a _________ flow of cars running in the streets, high ways and subways every day.

I like this jacket better than that one, but it costs almost three times _______.

Early experiences taught me not to be overly _      about shopping by mobile phone because there is a high risk of being cheated．

What makes the space shuttle _____ is that it takes off like a rocket but lands like an airplane.