A. convoy B. footprint C. source D. triangle A. addicted B. journal C. clarify D. beauty spot A. make progress B. motorbike C. choose D. sharp A. seal B. take pictures C. at an end D. car pool A. exert B. dive C. anxiety D. point out A. be tired out B. the C. divide D. claim A. disability B. monument C. fortune D. keyword A. delighted B. fathom C. sighting D. aerial A. linguist B. extinct C. on the phone D. rough A. hairy B. ashore C. air D. expose