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.