More than forty thousand readers told us what they looked for in close friendships, what t

More than forty thousand readers told us what they looked for in close friendships, what they expected【C1】______friends, what they were willing to give in【C2】______, and how satisfied they were【C3】______the quality of their friendships. The【C4】______give little comfort to social critics.

Friendship【C5】______to be a unique form. of【C6】______bonding. Unlike marriage or the ties that【C7】______parents and children, it is not defined or regulated by【C8】______. Unlike other social roles that we are expected to【C9】______-- as citizens, employees, members of professional societies and【C10】______organizations-it has its own principle, which is to promote【C11】______of warmth, trust, love, and affection【C12】______two people.

The survey on friendship appeared in the March【C13】______of Psychology Today. The findings【C14】______that issues of trust and betrayal(背叛)are【C15】______to friendship. They also suggest that our readers do not【C16】______for friends only among those who are【C17】______like them ,but find many【C18】______differ in race, religion, and ethnic(种族的)background. Arguably the most important【C19】______that emerges from the data,【C20】______, is not something that we found--but what we did not.

【C1】

A．on

B．of

C．to

D．for