A. opera B. fluency C. yay D. new A. impair B. on air C. good idea D. CD A. good-looking B. solve C. whose D. vitality A. apron B. silent C. chair D. one by one A. ad B. TV C. button D. be friends with A. sushi B. college C. plain clothes D. tidy A. hot B. table C. ingredient D. pretty A. radio B. sharpen C. labourer D. at the same time A. glasses B. have a party C. upper D. stack A. funny B. postman C. watch D. cellphone