Yang Liwei is regarded as our national hero,who is________.
The number of people at present ______ sixty, but a number of people______ coming here to get tickets for free.
—Why did he come back? —It is ______ he forgot to take his umbrella with him.
— Bob didn’t pass this exam.— He____________.
Jim, I’m _______ my present job. I want to look for another one.
He ______ his conclusions on the facts that are known to everyone.