A. quality B. methane C. in the daytime D. scraper A. mail B. trusting C. undeniable D. technological A. offer B. porter C. teenager D. dustbin A. afford B. tidy the desk C. sensational D. jump A. interval B. crazy C. contamination D. unimaginative A. man-made B. distance C. cent D. accidental A. wonderful B. pay C. canteen D. fireworks A. take a breath B. academic C. sixteen D. train A. surround B. grip C. husband D. chopstick A. stitch B. everyday C. twenty-two D. ageing