A. buy B. democratic C. is D. nutrient A. project B. and so on C. hi D. zero A. solution B. incredible C. goodbye D. make mistakes A. tunnel B. type C. at school D. my A. full-time B. name C. player D. train station A. children B. take off C. tusk D. kangaroo A. boring B. wind C. rusty D. what A. Mercury B. department store C. speaker D. and A. behavior B. good morning C. peacefully D. simply A. vowel B. hello C. south-west D. twenty-first