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

 — Alice, have you heard that the grocery store down the street was ______, and nearly all the things there were stolen?— God! Really? That’s horrible!

 Last year the number of the students who graduated with a driving license reached 200,000, a(n)________ of 40,000 per year. 

 The supermarket sells many foods that have been_____ , so it is convenient to feed your stomach.

My mom suggests that we ________ eat out for a change this weekend.