提示；朋友Mary请你帮她买几本汉语学习方面的书，你刚把书寄出。请你写一封100个词左右的短信。
1．书以挂号的形式在九月一号寄出，有五本，大概一周以后能收到；
2．如果她在学习过程中需要别的帮助的话，可以再写信来；
3．现在越来越多的外国人为了了解中国开始学习汉语，如果她想来中国学习的话，可以帮她在北京找个学校；
4．提醒她回信。
请注意：信的开头和结尾已经写好。
Dear Mary,
___________________________
Best wishes,
Yours,
Li Hua

A．not thinking about anything
B．thinking about the harm of smoking
C．thinking about the watch and how to get it, perhaps
D．thinking that the headmaster was very clever

A．get a higher pay
B．have enough time to stay with their children
C．have more time for rest
D．do more housework