A. envelope B. serve C. generally speaking D. invite A. snap B. dropped C. mule D. catch A. wheat B. cheap C. budget D. headmaster A. kitten B. parquet C. surprised D. least A. vote B. glad C. strychnine D. leave A. until B. beetle C. play the role of D. deadline A. print B. just a moment C. shock D. make a difference A. flu B. first place C. telented D. nutshell A. the day before yesterday B. dragon C. stage D. run A. family tree B. mammal C. turn down D. housework