连词成句。

1. wearing, Jim, a, coat, new, is (.)

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2. metres, 1.3, tall, Kim, is (.)

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3. do, you, where, live (?)

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4. favourite, my, jeans, are (.)

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5. you, walk, do, park, the, to (?)

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李明在探究“怎样用变阻器改变灯泡的亮度”时，连接的电路如图所示。闭合开关后，灯泡不亮，他用电压表进行电路故障检测，测试结果如表所示，则电路中的故障可能是

A．开关断路

B．开关短路

C．变阻器断路

D．灯泡断路