1．聽短文，根據(jù)你所聽到的內容，選擇正確答案．（短文讀兩遍）
16．How old was the American officer？
A．Fifty years old． B．Sixty years old． C．Seventy years old．
17．What did the officer do for the children？
A．To have an English lesson． B．To give a report． C．To tell a story．
18．Where were the children sitting？
A．In a big meeting hall． B．On the playground． C．In a big classroom．
19．When did the officer study in the school？
A．Fifty years ago． B．Thirty years ago． C．Fifteen years ago．
20．Who answered the officer's question？
A．A little girl． B．A tall boy． C．A short boy．
