2010年職稱英語理工類每日一練（9.28）

11. These are their motives for doing it.
    A. reasons
    B. excuses
    C. answers
    D. plans
    12. The river widens considerably as it begins to turn west.
    A. twists
    B. stretches
    C. broadens
    D. bends
    參考答案：11. A 12. C