A. infection B. mean C. spiral D. grade A. cold B. incumbent C. formal D. terrace A. overtake B. relaxed C. highly D. no doubt A. translation B. good-bye C. cucumber D. pocket A. material B. vacation C. fin D. primitive A. thank B. joke C. unpredictable D. pair A. use B. here and there C. immediately D. myxomatosis A. state B. strychnine C. literature D. postcode A. reunite B. splendid C. revision D. taboo A. shrewd B. beauty C. limestone D. in fact