________are watching TV at home.

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通读下面短文， 然后在所给的四个选项中，选出一个最佳答案．

　Mr Green had a nice shop in the main（主要的）street of a small town. He sold jewelry（珠宝）,watches, clocks and some 　1　 things like those. All went 　2 　for some years and then some thieves（小偷）broke into his shop at night 　3 　in one month and a lot of jewelry was 　4 　each time. Before the police caught the thieves, 　5 　later, Mr Green made up his mind 　6 　he would try to do something about it. So he 　7　　　 a camera（照相机）, put it up in his shop so that it would picture 　8　　　, if they came again. He also put some cheap （便宜的）jewelry in front of it for the thieves.

　A few nights later the thieves 　9 　again, but they did not take any of the cheap jewelry. They took the camera. It 　10 　￡15,000!

　　________are watching TV at home.

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