完形填空。 Dick had a toothache. His mother 1 him to the dentist. Before they saw the dentist, they 2 wait. 'Please come in!' said a nurse in a 3 dress. Dick looked afraid 4 he came into the dentist's room. 'Now tell me. What's wrong 5 you?' the dentist asked. 'I feel terrible. I think I've a 6 tooth,' said the boy. 'Well, let me have a 7 ,' said the dentist kindly. Dick 8 his mouth 9 the dentist began to examine his 10 . (     )1. A. took (     )2. A. will (     )3. A. white (     )4. A. when (     )5. A. to (     )6. A. big (     )7. A. see (     )8. A. closed (     )9. A. as (     )10. A. teeth B. wanted B. may B. black B. if B. about B. good B. look at B. opened B. or B. am C. brought C. must C. red C. then C. with C. bad C. rest C. saw C. but C. foot D. saw D. can D. green D. so D. in D. nice D. look D. held D. and D. nose