6.　　　 He looks so o ________ that you can’t find him out among people in the street easily

5.　　　 Do you know where sugar is p_____　 ___ ?

4.　　　 This story happened in the 　　　　(北方) part of our country.

3.　　　 New Year is coming. My family are d__________ the rooms.

2.　　　 They’ll go to visit the Beijing Museum of _________(自然) History.

A.　　 根据句意和首字母或汉语提示写出单词。

1.　　　 How do scientists explain dinosaurs’___　　 _______(消失)？