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on 6. He read a story________ how dinosaurs disappeared________ the earth. 答案: about。 by。t attend her birthday party and one thing (肯定無疑 ): I couldn39。m not quite ________(確定的 )about how much is left in that account. 答案: certain 8. Only after understanding a poem can we ________(欣賞 )it. 答案: appreciate 9. Many shooting ________(事件 ) go