I can’t believe that there are _____ many poor people in ____ a rich country.

The house, which is large and is surrounded by trees and flowers, is       what she longs for ．

When we think of communication , we _________ think of using words---- talking face to face, writing messages, and so on .

-Are you familiar _______ the music? -Yes. The music is familiar __________me,but I can`t remember when and where I heard.

(2009年合肥市高三第一次教学质量检测)The police tried to get some clues from the suspect，but he remained     ．