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(单选题)Keep your life ______ so that things don’t get you down. (单选题)The teacher gave us some advice on how we ______ English wel (单选题)It rained heavily for several days in a row month and ______ (单选题)You should take a spare battery with you in case the one bei (单选题)______ it to clear up tomorrow, the tourists would climb to (单选题)Which of the following activities is most likely interactive (单选题)It was when I got back to my apartment ______ I first came a (单选题)Madame Curie is believed ______ the radium. (单选题)The number of registered participants in this year’s maratho (单选题)Life is like a long race ______ we compete with others to go