【简答题】As a means of satisfying needs, exchange has much in its favor. People do not have to prey on others or depend on donations. Nor must they possess the skills to produce every necessity. They can conce...
【简答题】Directions: Choose correct words for each of the blanks. The rooms on the ground floor are quite ( dark/ light ) because they don't receive very much sun. They are also quite ( noisy/ quiet ) because ...