He wrote a （ ） letter.
（A）five - hundred - words
（B）five - hundreds - word
（C）five - hundred - word
（D）five - hundreds - words
It was very common that in （ ） children in （ ） were often seen to surf the Internet.
（A）the late 1990s; their teens
（B）late 1990's; their teen
（C）the late 1990's; their teen
（D）late 1990s; their teens
Your attention, please! Flight BOE 132 to New York is now boarding at （ ）.
（A）10th Gate
（B）Gate 10
（C）the Gate 10
（D）10 Gate
