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(单选题)We work during the week, but weekends and evenings are usual (单选题)Never count on him to make any complaint to the manager. He (单选题)The math problem was the most difficult one I had ever met, (单选题)______ private cars are bringing us convenience, they also c (单选题)We’re going to ______ the hutongs of Beijing. Would you like (单选题)Smoking does great harm to our health. ______ is smoking all (单选题)He found ______ a scroll of A Collection of the Poetry of th (单选题)Gogh and Leonardo da Vinci were known ______ their artistic (单选题)______ on the top of the mountain, and you’ll get a good bir (单选题)The top leaders of the two countries are holding talks in a