2. 外语
  3. Sonja Lyubomirsky bought the car just because she wanted to own a Prius. Because little research had been done on the explanati

Sonja Lyubomirsky bought the car just because she wanted to own a Prius. Because little research had been done on the explanati

admin2009-08-19  85
问题 Sonja Lyubomirsky bought the car just because she wanted to own a Prius.
Because little research had been done on the explanation of happiness, before going into the lab, Lyubomir-sky had done some ______.
选项
答案groundwork
解析 由题干中的before going into the lab定位到第三个小标题下第二段首句SO Lyubomirsky had to lay some groundwork before she could go into the lab.此处需要填入名词性成分。题干中的lay与原文中的do属同义转述。因此答案应该为groundwork。
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