1. 选词填空。

for, since

1. （1） a week ago，Jenny has been away from Beijing．
   

3. （2） Rose's cousins have been in HongKongthree days．
   

5. （3） Timmy was five years old，he has lived with his grandparents．
   

7. （4） The Smiths have been marriedfive years．
   

9. （5） The Greens have studied Chinese2008．