将下列句子合并成带有定语从句的复合句
【小题1】Electricity is a form of energy. It is used for healing and lighting, and to provide power for machines.
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【小题2】Do you know the doctor? He conies here once a month and examines the worker.
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【小题3】The foreign guest is Mr. Green. You saw him at the I school gate.
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【小题4】He is our new English teacher. I talked with him this morning.
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【小题5】She is going to he sent to work in Tibet. She is the only one of the students.
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【小题6】The factory has developed new products one after another. We visited the factory last week.
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【小题7】What’s the name of the girl? Her grandpa took part in the Long March.
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【小题8】The man looks like the actor. I’ve heard his songs on TV.
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【小题9】This letter is from my elder brother. He serves in the army.
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【小题10】Do you see the bridge? It was built with stones.
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