(   ) 1. Mike works ______ nine o’clock in the morning  ______ six o’clock in the afternoon.

A. at; in   B. on; to   C. from; to      D. in; in

(   ) 2. I know my English teacher has an ______daughter.

      A. eight-year-old   B. eight years old  C. eight-years-old  D. eight year old

(   ) 3. Lily goes to school ______ bus every day.

       A. on          B. at            C. by          D. in