Tony is a quiet student,he is active in class.

Adam and Max hardly knew what to talk about: they had so little ________.

d professor travelled from one school toanother, _______ first-hand information about the education situation in China.

Have you decided where togo for your summer vacation—Not yet. We _________go toQingdao. It is a good place for vacation.

In the north of our town _______, which dates back to the Ming Dynasty.