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1. I had (1)____a____ very bad experience (2)___________ last Sunday. I bought (3)_____a_______ flash drive from (4)_______the_______ computer store in (5)____the______ local shopping centre. When I went back (6)____________ home, I inserted it into my computer, but it was not recognized. I took it back to (7)____the______ store, but (8)_______the_______ store manager got very angry. He pointed at (9)___a______ crack on (10)___the______ flash drive, and said his store was not responsible for such (11)_____a______ defect by my carelessness. I couldn’t say (12)_____a_______ word, and had to buy another flash drive.