12．_______ from view day by day，the singer is turning to his memories for comfort．（ ）
| A． | Having been disappeared | B． | Being disappeared | ||
| C． | Disappeared | D． | Disappearing |
11．After decades of living under oppression，the people of the Arab world are rising up to rebel ______ their ruler．（ ）
| A． | from | B． | away | C． | against | D． | in |
10．The couple walked together as far as the second crossing of the street they waved goodbye to each other．（ ）
| A． | when | B． | which | C． | why | D． | where |
9．You can hardly imagine the difficulty the woman had her children．（ ）
| A． | brought up | B． | to bring up | ||
| C． | bringing up | D． | to have brought up |
6．
Money is the root of all evil-and new study claims there may be some truth behind the saying．Scientists at the University of California，Berkeley，US，（41）Jon February 27that rich people are more likely to do （42）C things，such as lie or cheat，than poorer people．
The scientists did a series of eight experiments．They （43）Etheir findings online in the Proceedings of the National Academy of Sciences （PNAS）．
They carried out the first two experiments from the sidewalk near Berkeley．They noted that drivers of newer and more expensive cars were more likely to cut off other cars and pedestrians at crosswalks．Nearly 45percent of people driving expensive cars （44）Aa pedestrian compared with only 30percent of people driving more （45）Dcars．
In another experiment，a group of college students was asked if they would do unethical（不道德的） things in various everyday situations and （46）Fincluded taking printer paper from work and not telling a salesperson when he or she gave back more（47）H．Students from higher-class families were more likely to act dishonestly．
According to the scientists，rich people often think money can get them out of trouble．This makes them less afraid to take risks．It also means they care less about other people's feelings．
Finally，it （48）Imakes them greedier．"Higher wealth status seems to make you want even more，and that increased want leads you to bend the rules or break the rules to serve your self-interest，"said Paul Piff，lead scientist of the study．
Piff pointed out that the findings don't mean that all rich people are untrustworthy or all poor people honest．He said the experiments were to show how people living in different social situations express their （49）Gand values in different ways．
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| A．ignored B．coincidentally C．immoral D．modest E．published F．instances G．instincts H．change I．simply J．announced |
The scientists did a series of eight experiments．They （43）Etheir findings online in the Proceedings of the National Academy of Sciences （PNAS）．
They carried out the first two experiments from the sidewalk near Berkeley．They noted that drivers of newer and more expensive cars were more likely to cut off other cars and pedestrians at crosswalks．Nearly 45percent of people driving expensive cars （44）Aa pedestrian compared with only 30percent of people driving more （45）Dcars．
In another experiment，a group of college students was asked if they would do unethical（不道德的） things in various everyday situations and （46）Fincluded taking printer paper from work and not telling a salesperson when he or she gave back more（47）H．Students from higher-class families were more likely to act dishonestly．
According to the scientists，rich people often think money can get them out of trouble．This makes them less afraid to take risks．It also means they care less about other people's feelings．
Finally，it （48）Imakes them greedier．"Higher wealth status seems to make you want even more，and that increased want leads you to bend the rules or break the rules to serve your self-interest，"said Paul Piff，lead scientist of the study．
Piff pointed out that the findings don't mean that all rich people are untrustworthy or all poor people honest．He said the experiments were to show how people living in different social situations express their （49）Gand values in different ways．