A. half an hour B. Father Christmas C. postman D. cause A. doubt B. bullfight C. spit D. invent A. sunglasses B. particle C. valuable D. opaque A. rainforest B. deal C. active D. drown A. Canadian B. all kind of C. worried D. Arabic A. go for B. biochemist C. deal with D. Mercury A. submerge B. reusable C. be bad for D. pronounce A. bowling B. imagine C. suspect D. ad A. tweet B. spoil C. worry D. hip A. particularly B. Traveling C. baleen whale D. method