问答题 {{B}}Directions:{{/B}} You rent a house through an agency. The heating system has stopped working. You phoned the agency a week ago but it still has not been repaired. Write a letter to the agency. Your letter should be based on the following outline: 1) state your purpose; 2) explain the situation; 3) tell them what you want them to do about it. You should write about 100 words on ANSWER SHEET 2. Do not sign your own name at the end of the letter. Use "Fan Cheng" instead, You do not need to write the address.