1£®The coastal areas have mild winters, but by contrast the  ________ (center) plains become extremely cold.

2£®For  ________ (vary)reasons, more workers will have to be laid off this year.

3£®Have you ever been to Mount Huangshan, which is famous  ________ its towering pine forests and “sea of clouds”£¿

4£®The city's bright lights, theaters, films etc.are  ________ (attract) that are hard to avoid.