—Is your friend quiet?—No, he never stops .
Jack is shy. I wonder if he ___ to give a speech in front of the whole class.
____ beautiful these postcards are! Where did you get them?
He managed to become a great inventor ___ he left school at 16.
Do you doubt ____ Bill would like to help you translate this novel into English?
Mr.Li is busy these days. He ___ gets a chance to go to the cinema.