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填空。 When Susan was at university, she often went to 1 library. It was a beautiful building. She liked it because it was nice and quiet. Sometimes 2 the library she worked on the computer and did 3 research. At other times she read history books. She discovered many 4 things about the past. She learnt about how difficult life was in the past. She often 5 a notebook with her so that she could make notes in it. ( ) 1. A. the ( ) 2. A. on ( ) 3. A. A. some ( ) 4. A. A. interest ( ) 5. A. bought B. a B. by B. any B. interested B. took C. an C. at C. other C. interesting C. saw D. / D. for D. another D. right D. put