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guesses it can’t be a dog.He thinks the noisemaker is having too much fun creating fear in the neighborhood.1. It used to be very quiet.used to do sth. 曾經(jīng),過(guò)去常常 (現(xiàn)在不做了)be used to do sth. (=be used for doing sth.) 被用來(lái)做 ……be used to doing sth. 習(xí)慣于做 …… . I used to study in this school. 我曾經(jīng)在這個(gè)學(xué)校學(xué)習(xí)。 Our parents are used to living in the village. 我們的父母習(xí)慣了居住在山村。 This box is used for storing toys. = This box is used to store toys. 這個(gè)箱子是被用來(lái)儲(chǔ)存玩具的。2. However, these days, something unusual is happening in our town.構(gòu)成:不定代詞 +形容詞(定語(yǔ)后置) . something important 一些重要的事情 something interesting