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use them. 1. How many words does one use? A. Nobody can answer the question. B. No one knows for sure but Pro. Seashore. C. Not everyone can tell the exact number. D. People cannot give an exact answer, not even Pro. Seashore. 2. Pro. Seashore concluded that it takes ______ years for a firstgrader to increase his vocabulary from 24,000 to 80,000. A. 12 B. 10 C. 8 D. 5 3. According to Pro. Seashore ______. A. one has at least 80,000 recognition words