A. African B. recuperation C. should D. scientist A. countryside B. giraffe C. height D. sign A. former B. taboo C. reach D. check A. neat B. kiwi C. point at D. mind reader A. explorer B. planetary C. sphere D. see the doctor A. anything B. optional C. raft D. frightened A. brush one's teeth B. player C. retirement D. systematic A. dentist B. standard C. site D. addition A. backache B. frozen C. take medicine D. Africa A. tenth B. pay attention to C. generation gap D. drink water