基本信息
1. i have won a holiday for two to florida. i _____ my mum. 
a am taking b have taken c take d will take 
2. teenagers _______ their health because they play computer games 
too much. 
a have damaged b are damaging 
c damaged d will damage 
3. -- when will you come to see me , dad? 
-- i will go to see you when you _______ the training course. 
a will finish b are finishing 
c finish d have finished 
4. we will go to the park if it _______ tomorrow. 
a won’t rain b is not raining 
c doesn’t rain d rains