閱讀下面的短文，文中有15處空白，每處空白給出了4個選項，請根據(jù)短文的內(nèi)容從4個選項中選擇1個最佳答案。

Friends May Be Key to Living Longer

Looking for the secret of a long life? Look closely at your friends. New research suggests that having a strong network of friends helps people live longer.

"Older people with better social networks of friends were less likely to ______(1)over a 10-year follow-up(隨訪) period than older people with______(2)friends networks ，" Lynne C. Giles of Flinders University in Australia told Reuters Health.

But in what may come as a surprising finding to older people______(3) rely on their children and other relatives ，having a large network of relatives was not associated with longer life，according______ (4) Giles and her colleagues."Of course， that is not to say that social networks______ (5) children and other relatives

are not important in many other ways，" Giles said.Study after study has shown that elderly people who______ (6) connected with lots of people tend to live longer lives.______(7)， few studies have examined whether different types of relationships - with friends ， partners ， children

and______ (8) relatives - have different effects on longevity(長壽)。Giles's team set out to examine the relationship between various types

of social networks and______(9) in a group of almost 1 ，500 Australians who were at least 70 years______(10)。 Volunteers answered______(11)about their social networks and then were followed for 10 years.

The researchers took into account several factors that could have influenced how long a person lived ，______(12) sex， age， health and smoking status.What the study showed was______(13) older people who reported better social networks of friends were______(14) likely to be alive at the end of the study than people with fewer friends.

But relationships with children and other relatives did not have______(15) effect on survival in the study.

1 A live B die C work D stay

2 A stronger B larger C newer D poorer

3 A which B whom C those D who

4 A at B to C on D by

5 A by B on C of D in

6 A is B are C was D were

7 A However B Once C Further D Moreover

8 A older B richer C some D other

9 A loneliness B longevity C activity D happiness

10 A big B long C old D ago

11 A doubts B questions C studies D tests

12 A taking B including C accepting D offering

13 A if B when C this D that

14 A less B more C very D most

15 A each B every C an D all

【參考答案】BDDBC BADBC BBDBC