选做题：阅读下面的短文，并根据短文的要求答题。（注意：问题后的词数要求。）
The rise of the so-called "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 grown-up 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 claims
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 as 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 probable 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).
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5. Translate the underlined sentence in the seventh paragraph into Chinese.
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