--- Did you return the book you borrowed from Tom?--- Yes, I gave it to him ______ I saw him.
More and more people will fall in panic, as the expert predicts, if not _______ properly.
The toughest thing about success is _______ you have to keep on being a success.
Cooking calls for _______ patience and time but it is _______ enjoyable experience.
Taiwan—born film-- maker Ang Lee won the Oscar for best Director at the 78th Academy Awards, _______ the highest honour in American movie fields.
His report was so exciting that it was interrupted by applause(掌声).