Unit One

   1. 我从来没丢过东西。
      I've never lost anything.

   2. 我已经有半年没有张明的音信了。
      I haven't heard from Zhang Ming for half a year.

   3. 牛牛写作业化了两个小时。
      Niu Niu spent two hours on his homework.

   4. 我到处找小王，但哪儿也没找到他。
      I have looked for Xiao Wang everywhere, but have not found him anywhere.

   5. 你的运气不错，而且你工作有很努力。
      You're lucky and you're working hard, too.

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