Unit Two

    1. -- 你看过大夫了吗?     -- 看过了。
       -- 什么时候去的?       -- 今天上午。
      
-- Have you seen the doctor?     -- Yes, I have.
      -- When did you go?              -- This morning.

    2. 我们是两年前初次相识的,自那以后我们就成了好朋友。
      
We first met two years ago, and have been good friends since then.

    3. 他们来得很及时,我们正需要帮助。
      
They came in good time.  We really needed help.

    4. 如果火车晚点,我也无能为力。
      
I can't help it if the train is late.

    5. 大家都知道他在编造故事。
      
Everyone knows he is making up a story.

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