阅读理解.
The rise of the socalled "boomerang generation (回巢族)" is reported in official figures
showing that almost one in five graduates in their late 20s now live with their parents.By
contrast,only one in eight university graduates had failed to fly the nest by the same age 20
years ago,research from the Office for National Statistics (ONS) shows.
It also found that grownup sons are twice as likely as their sisters to still be living with
their parents in their late 20s.
With nearly a quarter of men approaching 30 still living at home,the findings are bound
to lead to the claim of a "generation of mummy's boys"．
Rising housing prices,increasing student debts and the effects of depression on the job
market have forced a wave of young people to move back into the family home at an age
when they would normally________.
Young professionals in their late 20s or early 30s have been called the "boomerang
generation" because of the trend toward returning to the family home.
Recent research has suggested that young people in Britain are twice likely to choose to
live with their parents in their late 20s than their counterparts elsewhere in Europe.
But_experts_warned_that_the_phenomenon_may_have_more_to_do_with_young_
people_facing_dark_future_than_simply_a_desire_to_save_money.
While the percentage of those of university or college age moving out from the family
home has continued to rise in the last 20 years,among those in their mid and late 20s the
trend has reversed.
Overall 1.7 million people aged from 22 to 29 now share a roof with their parents,including
more than 760,000 in their late 20s,the ONS figures suggest.

1．What is the main idea of the passage?(Please answer within 15 words.)
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2．Which sentence in the passage can be replaced by the following one?
The survey showed that the number of young men living in the family home probably doubles
that of young women in their late 20s.
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3．Fill in the blank in the fourth paragraph with proper words or phrases to complete the
sentence.(Please answer within 5 words.)
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4．List three factors that have driven young people back home again based on the
passage.(Please answer within 5 words each.)
①________________________________________________________________________
②________________________________________________________________________
③________________________________________________________________________
5．Translate the underlined sentence in the seventh paragraph into Chinese.
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