"On the Internet, nobody knows you're a dog," read the title of a famous Peter Steiner cartoon,【C1】______nowhere is it truer than Internet dating. The experience is by now familiar: the【C2】______mate who seemed just your【C3】______in a profile turns out to be a disappointment in person. There may be ways, however, to【C4】______a lying person before you find yourself【C5】______from him or her at a table lit by candles. Researchers from Cornell University and the University of Wisconsin-Madison compared the【C6】______heights, weights, and ages of 78 Internet dating participants to their profiles on four dating websites. They noticed several【C7】______from people who were less than【C8】______. For example, they were less likely to【C9】______to themselves as "I"; used indirect expressions,【C10】______"not boring" instead of "exciting" to describe themselves; and stuck to【C11】______descriptions. "People do this because they want to【C12】______themselves from their misleading statements," explained Catalina Toma, an author of the study, in a statement. Using these indications, the researchers【C13】______identified liars about 65 percent of the time. People lied most frequently about their【C14】______, with women slimming down, on average, by 8.5 pounds, and men by 1.5 pounds. At least half the subjects【C15】______their height, and nearly 20 percent changed their age. Despite the【C16】______of lies, volunteers proved【C17】______at catching them. Fortunately, Toma and the team's research【C18】______up the possibility of a software that could【C19】______lies for you, though Internet dating participants should be careful what they wish for—nearly everyone in the study lied in some【C20】______way.