Even in the most primitive societies , the great majority of people satisfy a large part of their material needs by exchanging goods and services. Very few people indeed can make for themselves everything they need-all their food, their clothes, their housing , their tools. Ever since men started living in communities , they have been satisfying their needs by means of specialsation and exchange , increasingly each individual has concentrated on what he can do best and has produced more of the special goods or services in which he has concentrated , than he can consume himself. The surplus he has exchanged with other members of the community , acquiring in exchange the things he needs that others have produced.
According to the passage, the great majority of people can satisfy their needs today by

First read a passage and then answer the questions following that passage. Even in the most primitive societies the great majority of people satisfy a large part of their material needs by exchanging goods and services. Very few people indeed can make for themselves everything they need-all their food, their clothes, their housing, their tools. Ever since men started living in communities, they have been satisfying their needs by means of specialization and exchange, increasingly each individual has concentrated on what he can do best, and has produced more of the special goods or services in which he has concentrated, than he can consume himself. The surplus he has exchanged with other members of the community, acquiring, in exchange the things he needs that others have produced. Very few people can satisfy their needs today by

Even in the most primitive societies the great majority of people satisfy a large part of their material needs by exchanging goods and services. Very few people indeed can make for themselves everything they need-all their food, their clothes, their housing, their tools. Ever since men started living in communities, they have been satisfying their needs by means of specialization and exchange, increasingly each individual has concentrated on what he can do best, and has produced more of the special goods or services in which he has concentrated, than he can consume himself. The surplus he has exchanged with other members of the community, acquiring, in exchange the things he needs that others have produced. Exchange of goods becomes possible only when

Even in the most primitive societies the great majority of people satisfy a large part of their material needs by exchanging goods and services. Very few people indeed can make for themselves everything they need-all their food, their clothes, their housing, their tools. Ever since men started living in communities, they have been satisfying their needs by means of specialization and exchange, increasingly each individual has concentrated on what he can do best, and has produced more of the special goods or services in which he has concentrated, than he can consume himself. The surplus he has exchanged with other members of the community, acquiring, in exchange the things he needs that others have produced. Very few people can satisfy their needs today by

Even in the most primitive societies the great majority of people satisfy a large part of their material needs by exchanging goods and services. Very few people indeed can make for themselves everything they need-all their food, their clothes, their housing, their tools. Ever since men started living in communities, they have been satisfying their needs by means of specialization and exchange, increasingly each individual has concentrated on what he can do best, and has produced more of the special goods or services in which he has concentrated, than he can consume himself. The surplus he has exchanged with other members of the community, acquiring, in exchange the things he needs that others have produced. Specialization and exchange began when men started

First read a passage and then answer the questions following that passage. Even in the most primitive societies the great majority of people satisfy a large part of their material needs by exchanging goods and services. Very few people indeed can make for themselves everything they need-all their food, their clothes, their housing, their tools. Ever since men started living in communities, they have been satisfying their needs by means of specialization and exchange, increasingly each individual has concentrated on what he can do best, and has produced more of the special goods or services in which he has concentrated, than he can consume himself. The surplus he has exchanged with other members of the community, acquiring, in exchange the things he needs that others have produced. Exchange of goods and services becomes necessary because

Read the passage carefully and answer the question given below. Even in the most primitive societies the great majority of people satisfy a large part of their material needs by exchanging goods and services. Very few people indeed can make for themselves everything they need-all their food, their clothes, their housing, their tools. Ever since men started living in communities, they have been satisfying their needs by means of specialization and exchange, increasingly each individual has concentrated on what he can do best, and has produced more of the special goods or services in which he has concentrated, than he can consume himself. The surplus he has exchanged with other members of the community, acquiring, in exchange the things he needs that others have produced. Exchange of goods and services becomes necessary because

First read a passage and then answer the questions following that passage. Even in the most primitive societies the great majority of people satisfy a large part of their material needs by exchanging goods and services. Very few people indeed can make for themselves everything they need-all their food, their clothes, their housing, their tools. Ever since men started living in communities, they have been satisfying their needs by means of specialization and exchange, increasingly each individual has concentrated on what he can do best, and has produced more of the special goods or services in which he has concentrated, than he can consume himself. The surplus he has exchanged with other members of the community, acquiring, in exchange the things he needs that others have produced. Exchange of goods becomes possible only when