59. Don’t worry. I'm sure I have his email (地址) .

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73. 自2010年以來(lái)，鹽城發(fā)生了很大的變化。

Great changesin Yancheng.

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根據(jù)短文內(nèi)容，回答下列問(wèn)題。

51. What is becoming very popular now?

52. Does the underlined word “once” mean “one time” in the second paragraph?

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() 13. — Tom looks sad. Maybe he his score in the maths exam. — I'm afraid so.

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Is the whale the world’s largest fish? No. It looks like a fish,but it is not. Then what’s the world’s largest fish? It's the whale shark.

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