China began its sixth population census(人口普查)on November 11, 2010．The result was released this April．The population of China is 1339724852．
WHEN MIDNIGHT CAME When it came to midnight on that day, the census was begun．28-year-old Wang Yi in Jinan, began knocking on a door in an apartment building．A young man with a drowsy look opened the door．The man named Ji Wei, who had missed the poll because of business elsewhere, quickly fill out the questionnaire which had questions about name, age, job and housing condition．
DIFFERENCE THIS TIME Different from the last census, the floating population this year was registered at where they actually live．Also, for the first time people from Hong Kong, Macao and Taiwan, as well as foreigners in the Chinese mainland, are included in the census．But those on short-term business or sight-seeing trips will not be covered．
HARD BUT HELPFUL As Chinese people's privacy(隐私)grows, census takers have difficulties in getting the information they need．“In front of our compound there was a lady in her 40s selling pickles．During the preliminary poll, she refused to tell us her phone number．” said Wang Xin, a census taker in Shenyang．
(Xinhua reporter Wang Ying from Liaoning, Xiao Sisi from Guangdong, Yin Lijuan from Beijing, Ren Liying from Hebei and Liu Baosen from Shandong contributed to the report)
根据短文内容，选择最佳答案。
(1)
How many times did China have census?
[ ]
A．
Four
B．
Five
C．
Six
D．
Seven
(2)
Ji Wei missed the poll before because he _________?
Ji Wei lives 1 a farm.The farm is not big.His parents 2 rice.They don't us animals to do farm work 3 ndline.Today they use a tractor(拖拉机).It works 4 and better After Ji Wei does the work 5 the fields,he likes to sit and look at the blue sky and the green hills.He thinks the 6 is more beautiful than the city.In the city.he can't hear the 7 ndline.In the country，he can hear birds singing and sheep bleating.
John agrees with Ji Wei.John's 8 are on a farm，too.They grow corn and wheat,John thinks their corn is the most 9 ndline.He often sits and listens to the animals.On his farm,there is a small lake.John often goes 10 there because he can get some fish.He is happy to live there.