Translation

81. I must have sounded very proud of myself after the test, saying loudly how easy it was and how I was sure to get a good mark..

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82. What I’m here to say is that having worked side by side with many environmentalists , I know that a healthy environment and a stable economy should be possible at the same time.

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83. Rapid development and an increase in population have meant that the amount of water taken from the river is rising, and that the waste being put back into the river has been increasing .

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84.__________________________(当问到男孩时), boys usually hesitate before responding.

85. However, some people believe that cloning human embryos with the intention of destroying them

 _____________________________________________________(对人类生命的不尊重)。

I ______ very proud of myself after the test, saying loudly how easy it was and how I was sure to get a good mark.

　 A. must sound　　　　　　　　　　　　　 B. must have sounded　

C. should sound　　　　　　　　　　　　 　D. should have sounded