I was having my dinner at McDonald’s one evening when an old couple slowly walked in. They   21  their meal. Took a table near the window and started   22   food out of the plate. There was one hamburger, one order of French fries(炸薯条) and one drink. The man  23  the food into two halves and carefully placed  24  before his wife.
He took a sip(一小口)of the drink. His wife also took one and then  25  the cup down between them. “That  26   old couple！All they can  27  is one meal for the two of them,” thought I. 28   the man began to eat his French fries. I  29  to my feet, went over and said that I was  30  to buy another meal for them. Bet he 31   refused me and said that they made it a   32  to share everything.
33 ,the lady didn’t take a bite, She sat there   34  her husband eat, and taking turns (轮流) sipping the drink, Again I   35  to buy them something but was refused, When the man finished eating and was   36  his face with a napkin (纸巾).I   37  no longer stand it. I made an offer to them a third time.  38  being politely refused, I asked the lady   39   ,“Madam, why aren’t you eating? You said that you share everything,   40  is it that you are waiting for?” “The teeth,” she answered.
21. A. served                      B. requested                C. collected                        D. ordered
22. A. carrying                   B. raking                    C. fetching                         D. bringing
23. A. divided             B. cut                         C. changed                         D. formed     
24. A. it                             B. this                        C. that                               D. one    
25. A. got                          B. settled                    C. set                                D. turned
26. A. funny                      B. crazy                      C. strange                          D. poor  
27. A. afford                      B. pay                        C. demand                         D. choose      
28. A. While                      B. Since                     C. As                                 D. Until  
29. A. came                       B. struggled                C. rushed                      D. rose   
30. A. anxious                    B. willing            C. satisfied                         D. quick 
31. A. warmly                    B. proudly                  C. kindly                           D. seriously
32. A. way                         B. habit                      C. case                              D. model
33. A. Surprisingly      B. Sadly                     C. Shockingly                    D. Bitterly
34. A. seeing                      B. noticing                  C. watching                       D. finding
35. A. wanted                     B. asked                     C. planned                         D. attempted
36. A. wiping                     B. touching                 C. bathing                          D. washing
37. A. should                     B. could                     C. might                            D. would
38. A. In                            B. Upon                     C. After                             D. With
39. A. curiously           B. carefully                 C. naturally                  D. plainly
40. A. How                        B. Who                      C. Why                             D. What