Check your answers with the key at the back of the book．

The key for the eighty-year-old professor to keep fit is to jog three kilometers every morning．

Measures must be taken to meet this situation．

The political situation in the world is very complicated．

翻译

1)的确，实行五天工作制有许多明显的优点。

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2)显然，电视有优点也有缺点。

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It was obvious that he was telling a lie．

Ladies and gentlemen, thanks for coming．

The eagle expanded its wings．

As we grow up, we expand our interests and become more confident．

Don’t just look at the figures, look at the quality of work, too．