根据句意及首字提示填空。

1．Xi’an is an a        city. Have you ever been there?

2．This was invented in the last twenty years of the twentieth c       .

3．The actors and actresses in different c       looked very beautiful.

4．On April Fool’s Day we can hear many different kinds of h       .

5．Please open the window to let f       air in.

1、1．ancient          2．century                3．costumes      4．hoaxes          5．fresh