A. oxygen B. enrich C. hotline D. warm A. on top of B. sad C. the London Eye D. instruct A. leg B. but C. backward D. later on A. cut rice B. catfish C. twenty-seven D. cool A. crosswalk B. others C. playwright D. hand A. Chinese B. proverb C. head D. unless A. ignoble B. nose C. video D. green beans A. ear B. polluted C. rubber D. Jamaican A. date from B. whistle C. Father Christmas D. arm A. took pictures B. distinguish C. satellite D. face