三句英汉互换 ;一句连词成句；一个改写句子 ————————————急用.三句三句三句
1)Do you sometimes forget birthdays or important appointments?
2)There is a new service on the Internet called on -line calendars.
3)假如你没有时间去购物的话.
4)将下面的单词组成一个句子:but,you,to,check,e-mail,every,your,must,remember,day!
5)将下面的句子改为被动语态：The on-line calendar will send you an e-mail message to remind you about your mother's birthday or your friend's graduation day.