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most helpful B. more helpful C. helpful D. help 4. I prefer lemons _____ oranges .I like the sour taste . A. in B. on C. to D. at 5. I am sorry . I ______ go now . My father told on the phone that my mother was ill . A .can B. may C. have to D. think (20) IV 閱讀理解 (9%) 1. Wh