A. conceal B. colonel C. accidentally D. invention A. countryside B. receiver C. degree D. excavate A. landmark B. fathom C. persuade D. give sb a ride A. sign B. Australia C. mental D. all of a sudden A. alien B. variant C. the UK D. remains A. dismay B. medicine C. feature D. inventor A. cause B. subtitle C. help with D. break the ice A. sixth B. pastry C. take in D. destruction A. amazing B. pie C. villager D. coach A. bud B. examine C. treat D. lucky