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12.有了先进的科技,世界各国的警方可以更快更方便地抓获罪犯.(available)With the advanced science and technology available,the police all over the world can catch out criminals faster and more easily..

分析 With the advanced science and technology available,the police all over the world can catch out criminals faster and more easily.

解答 With the advanced science and technology available,the police all over the world can catch out criminals faster and more easily.
这是对事物的评价,所以用一般现在时.
结合提示词available可知,本句可使用介词with的复合结构.catch out 发觉…有错误/做坏事;抓住.

点评 介词with的复合结构运用很广泛,应该灵活运用它的几种用法.

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