(10) Miss Gao asked a question, but it was ____________ that nobody could answer it.

　　A. very difficult　　　　B. too difficult

　　C. difficult enough　　　D. so difficult

　　(11) —I‘m afraid no one will agree with you.

 　　—I don‘t think it ___________.

　　　A. minds　　　B. matters　　　C. works　　　D. troubles

　　(12) —I haven‘t seen you for a long time. How is everything, Kate?

 　　　  — _________.

  　　　A. Not too bad　　　　B. Very well

　　C. Not at all　　　　  D. I‘m all right

　(13) —Is Mr Green really very ill?

 　　　— _________. He‘s in hospital.

　　　A.I don‘t think so　　　　B. No, he isn‘t

　　　C. I hope so　　　　　D. I‘m afraid so

　　(14) I can‘t understand this passage ___________ there are no new words in it.

　　A. if　　　B. because　　　C. though　　　D. and

　　(15) We often see the sign ____________ in the busy street. So don‘t park your car there.