A friend of mine and her new husband were enjoying a romantic evening at a restaurant. They still 1_(be) in love and 2__(sit) looking into each other's eyes. But soon they noticed an elderly lady 3___(dine) alone at the opposite table. She 4 (gaze) at them with love and admiration. They smiled back politely and the old dear 5___ (come up) to their table. 'I'm sorry to trouble you ;she 6(begin) sadly, 'I never 7(see) such a beautiful couple in my life. I 8___ (watch) you all the evening. You know, my dear, your wife 9(look) so much like my daughter. She 10(kill) last year and I 11(be) so miserable ever since. I 12(miss) her terribly. I wonder if you 13(be able) 14 (do) me a great favour?' The couple 15(say) that they 16(do) so. 'It 17(give) me such a joy, if just as I 18(leave), you 19(say) “ Goodbuy,Mum! ‘’ Certainly they 20 ( not can) 21(refuse) her this. A few minutes later the old lady 22(stand up) to leave and the two diners 23(do) as she 24___(ask) them. Soon their bill 25 (bring). They checked and rechecked it and finally 26 (make) the manager 27(explain) why it was so massive. 'Your bill 28(include) the old lady's meal,' was the answer. 'She 29 (expect) her daughter 30(pay) for her. Isn't that natural?