A. carnival B. fifth C. ammeter D. tower bridge A. flap B. country C. sang D. favorite A. go up B. hub C. cultural D. Sydney A. welcome B. theirs C. permanently D. sun A. koala B. challenge C. deposit D. start A. grain B. screw C. next week D. barrier A. visitor B. pour C. painful D. teen A. air conditioner B. such that C. London D. melon A. kettle B. egret C. like D. definitely A. guy B. call up C. about D. pencil sharpener