【正确答案】Dear Mary,
I phoned you several times yesterday, but you didn't answer my call at all. I begin to worry about you.
Is everything going on smoothly? Or do you come across any trouble? I heard that your mom was sent to the hospital yesterday because she fainted in the supermarket. Is that true? If this is the case, you must be very worried now. I know your father is on business trip and can't be back until next week, so you have to deal with everything by yourself.
If there is anything that I can help, don't hesitate to tell me. I will be glad to help you.
Yours,
Li Ming

【答案解析】 本文要求写一封邮件，对朋友表示关心。言辞应该充满关切，并问对方是否需要帮助。
第一段告知对方，自己打过几次电话，对方没有接听。
第二段问对方发生了什么事请，是否遇到什么麻烦，可以自己补充其他信息。
第三段问对方是否需要自己帮忙。