__________ you are old enough to judge things, you should decide your path in life.

 Usually an adult man can grow about 1.7 meters tall, _____ a few may grow as short as 1.3 meters.

Was it at the Olympic Games ______ were held this year ______ Liu Xiang got a metal?

I'm sorry you've been waiting so long，but it'll still be some time ________ Brian gets back.

Recently, employees at the Shanghai Metro’s Railway Station Stop have been busy learning dialects from other parts of the country, ___________ aims to provide better service to travelers from outside the city.