a. they cannot be recycled

　　b. they are not environmentally friendly

　　c. they are mostly sold for charity

　　d. free e­cards have many advantages over them

　　e.they are not as necessary as they used to be for people to stay connected

　　A.a, b, d

　　B.a, c, d

　　C.b, d, e

　　D.b, c, e

　　答案：C　细节理解题。由第四段倒数第二句话“Environmental awareness also means that nowadays many people recycle their cards”可知，“a.they cannot be recycled”不选；由第四段第二句话“Many people sent cards that were sold for charity.”可知，“c.they are mostly sold for charity”中mostly错误，所以不选。

　　69．What can we conclude from the article?

　　A.The first Christmas cards were designed three years earlier than the world's first stamps.

　　B.This year has seen a dramatic drop in Christmas card sales.

　　C.Environmentalists advise people to buy cards that are sold for charity to help raise money.

　　D.Growing environmental awareness is encouraging people to begin to recycle their cards.

　　答案：D　细节理解题。由第四段倒数第二句话“Environmental awareness also means that nowadays many people recycle their cards”可知，环保意识意味着要循环使用贺卡。

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