Connect the two sentences into a single one, using the second given sentence as a dependent clause

Connect the two sentences into a single one, using the second given sentence as a dependent clause. 

1. Geraldine Chaplin is a great actress. However, she is less well-known than her father Charlie Chaplin.
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2. They spent the night here. It was too late for them to go home.
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3. You must come early. We will have time to make all the arrangements.
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4. I took my little son to school. After that, I went to work. 
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5. The visitors arrived. She was preparing dinner.
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