11. Jack always offers_______my bags when 1 go shopping, but I always refuse A. to carry/ to help B. carrying/ helping C. to carry/ to be helped D. carrying/ to be helped 12 . _______students in my school have a good command of English. A. Most B. The most C. The most of D. Almost 13. She was unable to warn her mother that she would be late because the telephone was_______ . A. off work B. out of order C. off duty D. out of work 14. Peter and I have much pleasure_______ accepting the invitation to Marys birthday party. A. on B. about C. for D. in 15. Her guest apologized for causing her so much_______ . A. trouble B. complication C. damage D. problem