The deadly accident _____ his careless driving.

When it comes to “empty-nest syndrome(综合症)”, parents are advised to _______regular contact with children through phone calls, emails, texts or video chats. 

The statistics reveal that there has been a______increase in consumer prices in the latest months in China.

Usually a meteorological observatory (气象台) _____ air quality in urban areas from one to five: excellent, fairly good, slightly polluted, poor, and dangerous. 

Mary worked here as a ________ secretary and ended up getting a full­time job with the company.