单选题 She is a newcomer to biology but she has already ____ some discoveries.
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单选题 Be quiet! The baby is _______.
单选题 Which do you like _______, wealth or health?
单选题 The newspaper on the desk is not _______.
单选题 She's already _______ her mother.
单选题 You can swim in a _______.
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单选题 He would rather not _______ jazz.