1.       ----Do you know ______ beautiful girl in pink over there ?

----Yes. She is ______ officer worker of Lantian Hotel.

A. a; an            B. the; the           C. a; the          D. the; an

2. Can you imagine what the world will be like in _____ time ?

   A. 50 years’         B. 50 year’s          C. 50—year’s     D. 50—years

3. --- I haven’t got a digital camera.

  --- I think you should buy ______. It’s useful for you.

  A. one               B. this              C. that           D. it