Section I Use of English Directions ： Read the following text 。 Choose the best word （ s ） for each numbered blank and mark A ， B ， C or D on the ANSWER SHEET 。 （ 10 points ）

Happy people work differently 。 They ’ re more productive ， more creative ， and willing to take greater risks 。 And new research suggests that happiness might influence 1 firms work ， too 。 Companies located in place with happier people invest more ， according to a recent research paper 。 2 ， firms in happy places spend more on R&D （ research and development ） 。 That ’ s because happiness is linked to the kind of longer-term thinking 3 for making investment for the future 。 The researchers wanted to know if the 4 and inclination for risk-taking that come with happiness would 5 the way companies invested 。 So they compared U.S 。 cities ’ average happiness 6 by Gallup polling with the investment activity of publicly traded firms in those areas 。 7 enough ， firms ’ investment and R&D intensity were correlated with the happiness of the area in which they were 8 。 But it is really happiness that ’ s linked to investment ， or could something else about happier cities 9 why firms there spend more on R&D ？ To find out ， the researches controlled for various 10 that might make firms more likely to invest like size ， industry ， and sales-and-and for indicators that a place was 11 to live in ， like growth in wages or population 。 They link between happiness and investment generally 12 even after accounting for these things 。 The correlation between happiness and investment was particularly strong for younger firms ， which the authors 13 to “ less confined decision making process ” and the possible presence of younger and less 14 managers who are more likely to be influenced by sentiment 。 ’’ The relationship was 15 stronger in places where happiness was spread more 16 。 Firms seem to invest more in places 。