题目

听材料,回答小题。 (1) What happened to the Cuyahoga River in 1969? A . It was cleaned up. B . It was seriously polluted. C . It became the most outstanding river. (2) How long did it take for the river to become clean?    A . A few months. B . Several years. C . A few days. (3) What can make the river clean according to the speaker?    A . Hard work. B . Something imaginable. C . The control of using your credit card.  (4) What shall we do when facing an impossible situation?    A . Wait for something to change. B . Imagine something outstanding. C . Just be patient and do something. 答案: B B A C
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