Can you describe the people and the things ______ have been seen in Tibet?
--- The Greens have gone to Yangzhou for a trip, haven’t they ? ---____ , and they will return tomorrow afternoon.
--- The presidents of China and Russia had ____ interview a short time ago . --- And it was ____ great success. .
_____ you’re right.I'm not sure.
There isn’t ______ in today's newspaper.
.His hair is shorter than _______.