1£®The passage mainly discusses ______________£®

A£®Big cities£®                                                B£®City life£®

C£®Population£®                                              D£®Gross Domestic Product£®

2£®According to the passage£¬in the year of 2030 _______£®

A£®there will be 21 cities having a population of more than 10 million£®

B£®rural area will be extinct£®

C£®most people will live in cities£®

D£®the third world will keep abreast with the developed world£®

3£®In the author’s opinion£¬_________£®

A£®better city£¬better life

B£®both urban and rural areas have a larger population

C£®the larger population£¬the faster a city develops

D£®both urban and rural areas have larger gross domestic products