Ten people applied for the job. None of them for were suitable

1. Ten people applied for the job. None of them for were suitable.
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2. I have sent her two letters. None of them has arrived.
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3. Mary make a number of suggestions. Most of them were very helpful.
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4. Jonh has three brothers. All of them are married.
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5. There were a lot of people at the party. I had not only a few of them before.
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