—How long have you known the doctor ?

—          he helped me three years ago.

A. When　        B. Before　         C. Because      D. Since

My sister is ____ more outgoing than me.　

A. more　     B. most　    C. a little　   D. little

_____?????? leaves the room last ought to turn off the lights.

A. Anyone 　??? B. The person? 　C. Whoever 　 D. Who

—How long have you known the doctor ?

—          he helped me three years ago.

A. When　        B. Before　         C. Because      D. Since

—The accident was really terrible.

   —Yes, it was. The young man on the bicycle was too        .

A. careless　        B. careful　            C. carelessly       D. carefully