—— Why do you decide ____ Beijing for vacation?——Because I want to visit the Great Wall.
I think skiing is ____ great fun.
-I have bought a Chinese – English dictionary? -When and where_____ you _____ it?
He has been in the USA .
-Excuse me, does Mr Smith son live here? -He used to_______ here, but he gets used to ______ in a modern city.
The old man lives _______ , but he never feels ________.