In 1492 Columbus and his crew arrived ______ was so-called the New World by the westerners．

It is ____ fashion differs from country to country ____ may reflect the cultural differences. 

I will never forget the day _______ I came to my university and the day ______  I spent in a new city. 

--- Mr. Lee wishes to see you.    --- _____ him in.

In1994, China began collecting income tax from citizens earning more than 800 Yuan per month but only 1% people were earning more than _______; now about 60% earn the amount.