A. depend on B. up and down C. incur D. mortally A. gunpowder B. whenever C. souvenir D. trousers A. workbook B. at the end of C. heady D. republic A. friendship B. chameleon C. be surprised at D. anthropologist A. left B. crazy C. constitution D. mammoth A. avenge B. statistics C. fill D. many kinds of A. plane B. budget C. forest D. weight A. rare B. daily life C. tell D. tram A. playground B. lines C. weigh D. sweater A. guest B. leftover C. oblige D. walk