Complete the sentences with the correct form of the expressions below. for the most part look upon on the side part with stumble upon toy with 1. For many years he ____________ his library as a pleasant challenge, but now he sees it as a duty. 2. She had often ____________ becoming a writer, but felt her true vocation was to teach. 3. It's not the books I've read for my work which inspire me; it's the books I've read ____________, books which have nothing to do with my specialism, which I've enjoyed. 4. _______________ I've enjoyed reading books beyond my usual interests, but sometimes I have to abandon the more obscure ones. 5. Now that I'm old, I could easily ____________ my books, but never with my family. 6. I like bookshops because you never know if you're going to ____________ a book which will change your life.