科研之友
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<正>Pre-reading Step 1. Greetings and selfintroduction (略)Step 2. Introduction of Mr.and Mrs. White T:My friends like tofu, too.Who are they? They are Mr.White and Mrs. White. They are from the USA. They like Chinese food very much. Now they come to China. Look, they like Mapo Tofu, Vegetables Soup,
