45. When I met him the other day, it was the first time we _____ each other since we were at school.
To deal with the global financial crisis, China has _______ a string of forceful measures over the past months.
. During the reconstruction of the city, many modern tall buildings went up ______ old shabby houses were torn down.
Faced with a bill for $10,000, _____.
We know that a smile is usually a sign _____ people feel friendly and happy, but _____ we don’t know who the new person is?
Mr. Black Shanghai in a few days. Do you know when the earliest plane ________ on Sunday?