填空。 Mary did not 1 such sentences as 'She is blue today', 'You are yellow', 'He has a 2 thumb (大拇指)', 'He has told a little white lie', and so on. And she went to her teacher 3 help. 'Mrs. Smith, there is a 4 in each of these sentences. What do they mean?' she asked. 'In 5 English, Mary, blue 6 means sad. Yellow-afraid. A person 7 a green thumb grows plants well and a white lie is not a bad one,' the teacher said. 'Would you give me an 8 for a white lie, teacher?' 'Certainly. Now I give you a cake. In fact you don't like it, but you won't say it. 9 you say, 'No, thanks, I'm not 10 .' That's a white lie.' (     )1. A. know (     )2. A. blue (     )3. A. for (     )4. A. word (     )5. A. today (     )6. A. sometimes (     )7. A. to (     )8. A. answer (     )9. A. And (     )10. A. ill B. understand B. yellow B. to B. colour B. common B. some times B. with B. book B. Instead B. happy C. read C. white C. with C. mistake C. everyday C. sometime C. of C. question C. But C. full D. see D. green D. by D. question D. usual D. some time D. at D. example D. Also D. hungry