补全对话。 A. What's wrong with her? B. I am stronger than anyone of you,aren't I? C. Her only son is in Shanghai on business. D. I am free at home all the day. E. Where did you go? F. What can I do for her? G. It's really hard work for all of us. Bob: It's a little hot today, isn't it? Ann : Yes, it is. Bob: I went to your home this morning. But you weren't at home. ___ _1__ __ Ann: Wang Dong,Liu Hong and I helped Grandma Li with her housework. Bob: Really? ___ _2__ __ Ann: She fell ill yesterday and she is over sixty years old now. ___ _3__ __ Bob: What did you do there? Ann: We cleaned the room and washed some clothes. Something was wrong with her tap (水龙头). So it took us a long time to get some water and carry it to her home. ___ _4__ __ Bob: Why didn't you call me? ___ _5__ __ Ann: Yes, you are. Would you like to go next time? Bob: Sure, I'd love to. Ann: Great !