Li Na returned to Wuhan after the Games, ______, as is known to us, she had been brought up and trained to be a gold medalist of tennis.
All I have to do is _________my life .
When _______ homework , you should be careful .
_______ the news, they are very happy.
We last night, but we went to the party instead.
The reason_______ he didn’t come was that he was injured.