完形填空。 An old man lived alone in a town. He wanted to dig up his potato garden, but it was very 1 work.His only son, who always 2 him in the past, was then in prison (监狱). So the old man wrote a letter to his son and said: Dear Son, I am feeling pretty bad because it looks like I won't be able to 3 potatoes in my garden this year.I 4 to miss doing it, because your mother always loved planting time. I'm just getting too old to dig up a garden. If you were here, all my 5 would be over. I know you would dig up the garden for me 6 you weren't in prison. Love, Dad Soon the old man 7 a letter:" Dad, don't dig up the garden! That's where I buried (埋藏) the guns (枪)!" At 4 a.m. the next morning, some 8 came and dug up the whole garden without finding any guns. The old man was 9 and wrote another note to his son. He told him what had happened, and 10 him what to do next. His son's reply was: "Go ahead and plant your potatoes, Dad. It's the best I could do foryou from here." ( )1. A. hard ( )2. A. taught ( )3. A. cook ( )4. A. hope ( )5. A. trouble( )6. A if ( )7. A. wrote ( )8. A. friends( )9. A. ill ( )10. A told B. interesting B. helped B. dig B. forget B. illness B. unless B. received B. neighbors B. lucky B. called C. C. changed C. plant C. hate C. er C. because C. sent C. policemenC. surprised C. invited D. boring D. stopped D. put D. decide D. fear D. when D. read D. prisonersD. sorry D. asked