HINTS：
Beijing 
Shanghai 
cigarette smoke
I prefer Beijing in the summer to Beijing in the winter. I love the parks in Beijing and I'm very fond of the kind of cooking they do there. Are you? Oh, I'm not, I prefer the kind of food we have in Shanghai. You're going to travel during your vacation, aren't you? Are you going by train or will you fly? Well, I quite enjoy flying, but it's so expensive. Trains are cheaper, but I detest cigarette smoke and the trains are always so smoky. No, I don't like it, either. Don't you? I thought you did! You like smoking, don't you? Well, I did, but I've given up smoking completely. Now I can't bear it. Good! I'm glad to hear it!