It seems views on having children are changing in the USA. New research shows that 25 per cent of adults do not want to have children. A study from Michigan State University (MSU) reveals that a quarter of American adults are happy to be "child-free". […1…]. It says these people do not want children and are happier without them. MSU psychologists Jennifer Watling Neal and Zachary Neal did research on why people who do not want children might be different. [...2…]. They said non-parents include "not-yet-parents" (those planning to have kids) and people who cannot have kids due to medical problems. The researchers looked at data from 1,000 adults who took part in an MSU survey. Ms Neal said: "We were most surprised by how many child-free people there are. She said child-free people were more liberal than those with children, who were more conservative. […3…]. She found that unsurprisingly, parents were more likely to be in a relationship. Around half of the child-free adults were single. Ms Neal also said child-free adults were a little younger and less well-educated than parents or non-parents. […4…]. She added that more research is needed to find out why people make the decision to be child-free. a) Find a word/phrase in the passage that is closest in meaning to 1. opinions 2. examined 3. participated 4. amazed 5. discover b) Which is the opposite of the word "conservative"? A. open-minded C. warm-hearted C. cold-blooded D. big-headed b) The following sentence can best fit which of the numbered spaces: "They wanted to find out what the differences were between these child-free people and "non-parents"