—________Beijing of 2012 saw its first snowfall in the month of November.—Oh, it came as ________ surprise to us.
He was_____weak_____ he couldn’t stand up.
They worked hard_____they finished their work ahead of time.
His speech made_____deep impression on the audience that they could hardly forget it.
_____everybody is here, Let’s begin our meeting.
He must have passed this way, _____here are his footprints.