the population has been increasing.
he doesn't know what to do.
she decided to travel around the world to raise the money for charity.
it is very convient to live close to the work.
the 2012 Olympic Games will be hold in London.
we will cook some dilicious food when i am free(have free time)
he is now used to going to school by bike.
the visitors will arrive in 3:00 pm
you should go to see the doctor now.
you will arrive in Shanghai in 2 hours if you start off now.