[填空题]

It’s not just an American phenomenon: Across the globe, single-parent homes are on the rise. Numbers for one-parent families increased from England to Australia during the 1990s, mirroring demographic shifts reflected in the U.S. census.
Just as in America, those shifts raised new questions about how involved government should be in helping single-parent families, which often are less well-off financially than those led by a married mom and dad.
41. __________
Annie Oliver, a 32-year-old single mother from Bristol, England, thinks so. "You wouldn’t believe how becoming a single parent suddenly made me a second-class citizen," said Oliver, who struggles to keep a full-time job and give the extra care her disabled son needs.
42. __________
By comparison, 9.8 million house-holds, or 9 percent of all U. S. households were headed by an adult raising a child alone or without a spouse. The 1990 census showed 26 percent of hom