The sky is clouding over；we can see there ________ a rainstorm.

Hundreds of Swedish workers are trialing a six—hour working day in the hopes that it will_____ sick leave and save the country money.

Since you are always working hard at your lessons, your efforts will ________.

The time is not far away when mobile phones _____ widespread in China’s vast country –side. 

The policy will _______a chain reaction of automatic spending cuts that can lead to thousands of job losses.