. A. sure B. soup C. sugar D. machine

A. bought B. daughter C. cough D. sight

A. hesitate B. reserve C. physics D. basic

A. century B. culture C. conical D. clinic

A. entrance B. enter C. enhance D. engine

A. occupy B. puppy C. ready D. study

A. says B. pays C. stays D. bays

A. breathe B. with C. thermal D. clothing

A. through B. this C. the D. there

A. thing B. threaten C. thought D. than