_______ an important role in a new movie, Andy has got a chance to become famous.

______the importance of education, the villagers paid more attention to the schooling of the children.  

Taobao．com has begun selling tickets online for international flights，      to cut the market share of Ctrip．corn and other competitors．

 Wolves would starve if food was difficult      , especially during the cold winter months.

_____ with the size of the whole earth，the biggest ocean does not seem big at all.