A. particular B. commission C. transistor D. anthropologist A. protect against B. endeavour C. haunt D. solitary A. boast B. erase C. disagreement D. explorer A. pioneer B. photography C. pity D. trouble A. frustrated B. shudder C. first prize D. baker A. squeeze B. solid C. by means of D. migration A. court B. bear C. shortage D. drove A. soar B. opaque C. riding D. little by little A. safe B. smaller C. also D. take a look at A. alpinist B. fishing C. was D. partial