phamtiendungnd2001 3/13/2025 1:41:06 PM

21. I went to bed. I was very tired. (because)

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22. Many people avoid using a microwave oven for fear of its rays. It has been shown to be safe. (although)

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23. Because of his age, Mr. Jones was not hired. He had the necessary qualifications. (even though)

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24. It is warm and sunny today. We go to the park. (because)

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25. Nick seems to be a trustworthy person. I don’t ask him for any advice before making important decisions. (however)

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9.1. TEST 1 (UNIT 9)