小题1:Don’t be crazy about these computer games any more.
小题2:I spend half an hour chatting with my friends on the Internet every day.
小题3:That boy started to practice playing football at6/at the age of 6/when he was 6.
小题4:I am looking forward to taking part in/joining in your birthday party.
小题5:Jack was too poor to take his son to the hospital./Jack was so poor that he couldn’t take his son to the hospital.