①I was twelve and, having lost all my old friends, I felt shy and lonely at my new school.
②Having been operated on the leg, he can't walk as usual.
③Not having made adequate preparations, they put off the sports meeting till next Friday.
④He often invited me to join his particular group, and as a result, I started getting/to get to know people.
⑤I like lying/to lie on my back staring at the sky.
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⑦
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