2．Listen to the passage and complete the following sentences（听短文，完成下列内容．每空格限填一词） 21．Marco Polosetoffon a journey to Asia，and did not return home until 24years later． 22．He described Hangzhou as"thefinestcity in the world"． 23．While he wasbehindbars，he told the stories of his travels to another man there． 24．He told of manyamazingthings that were unknown to Europe． 25．Marco Polo diedin1324．His last words were："I did not tell half of what I saw"．
