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This paper reports on two speech-production experiments focused on Putonghua and Taiwan Mandarin sentence-final particles and wh-phrases that have interrogative or indefinite readings in three contexts yes/no questions, wh-questions, and statements. Sentence-final particles were found to influence focus-prosody through right-edge shortening and lowering of F0 and intensity of wh-phrases, thus distinguishing wh-interrogatives from indefinites and questions from statements. Speakers adopt multidimensional acoustic strategies to shape intonation while maintain