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.