The keys:

  一、单项选择。

  1. D    2. B    3. B    4. B    5.C    6. B

  二、动词填空。

  1. will be          2. won't believe ; sees    3. will win

  三、句型转换。

  1. China will be a modern and strong country in twenty years.

  2. Will you study hard from now on?

  3. She won't speak English at the meeting before long.