A. wreath B. whose C. clean my room D. skim A. mathematics B. maglev train C. pencil D. without doubt A. do homework B. exercise C. he D. triangle A. meter B. hello C. paw D. explosive A. gatekeeper B. pollution C. seventy D. the Olympics A. chair B. shorts C. communicate D. unduly A. pencil box B. strait C. insect D. manoeuvre A. understand B. byproduct C. schoolbag D. up to standard A. forty B. script C. Princeton D. Sweet tooth A. reflect B. she C. convention D. fill