Part A You received an email from your friend John, in which he asked whether you could work as a volunteer on a weekend program to help the aged people who live alone. Write hack to your friend. 1) expressing your willingness to participate; 2) asking about what preparations to be made; 3) confirming the time and location for the work. You should write about 100 words. Do not sign your own name at the end of your email. Use' Wang Lin' instead.