Combine the clauses using participle constructions (Present, Past oder Perfect Participle). Decide whether to use the conjunctions in the participle clause or not.

1. As she didn't have a boyfriend, she flirted with every guy she met.
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2. Since he had never been there before, he was stunned.
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3. Before he left the house, he switched off the lights.
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4. As she was on holiday, she couldn't go to the party.
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5. While she was preparing dinner, she cut her finger.
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6. When I travel around Ireland, I always stay in youth hostels.
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7. Since she didn't hear the doorbell, she missed the delivery.
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8. After I had dropped him at the station, I drove straight to the supermarket.
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9. Since he didn't feel well, he stayed in bed.
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10. While they were talking on the phone, they forgot everything around them.
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