A. calcium B. notice C. obligation D. stack A. troublesome B. although C. fade out D. precaution A. infectious B. truant C. biography D. lion dance A. knife B. bend C. record-holder D. unit price A. helicopter B. seasonal C. stop D. spirit A. shame B. bite C. amazed D. dislike A. authoritarian B. sock C. sneer D. impression A. portfolio B. meantime C. crest D. warm A. cupboard B. dull C. fascination D. sheriff A. gate B. fan C. prejudice D. poisonous