Rewrite the following sentences to emphasize the underlined parts. Use cleft sentences.

1. The assistants helped me a lot in the experiment.

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2. She decided to take part in our volunteer activities last June.

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3. I attended a computer course to learn some new skills for my job.

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4. My experience helps me a lot in my current job.

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5. I met my business partner in Hà Nội.

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