Can you tell me what’s your aim inlife, Li Ping— I am aiming ____ a famous physicist.

According to_____WHO, all big cities need health care plans to prevent_____spread of AIDS.

Look at the little dog. _______ special nose it has!

Economic growth in the world remains weak throughout2013 and it is hoped that it will gradually in 2014

_______away the old books and _______me that new one.