My friend’s flight had taken off _________ I got tothe airport to see him off.

Where has all the time gone I can still remember the day when I first came to this school, but now I am about to leave.-_______.

________ he is the last man I wanted to see, I did my best to help him.

do anything last week—I _________ to go skiing or do some shopping, but ______ studying

Jackie Chan has donateddollarsto charity.—He is an example to us all.