Dear Li Gang,
I was really shocked and saddened to hear of your unhappy experience in the earthquake. There is little that anyone can say or do at a time like this to ease your grief, but I would express my deepest sympathy.
In the next day or so you will receive a little package from me. I hope you like it, and that it will be useful at your present moment. What‘s more, please don’t hesitate to contact me if there is anything else I can do now and always.
I do hope you will soon get well again and be able to come back to school. Be assured of my availability and eagerness to help in any way I can.
Yours sincerely,