任務：請你用英語給她寫一封50左右的'簡訊。內容包括：
1 告訴她何時收到書的; 2 你認為這本書怎麼樣; 3 你目前正在忙什麼;
4 詢問她何時回再來中國。 請用下面格式：
Dear Lucy ,
……
Li Yan
範文：
Dear Lucy ,
Thank you for sending me the English book . I got it yesterday . I find it is very useful for me to study English . Now I’m enjoying the summer holiday like you . I spend most of the time studying my subjects . When are you coming to China next time ? I’m looking forward to seeing you again .
Li Yan
