A. barrier B. grandparent C. television D. academy A. contradict B. arrive at C. invention D. different A. dear B. sleepy C. recite D. enough A. loud B. take for granted C. work D. worried A. petrify B. night C. flexible D. dustman A. couldn't B. on the right C. backward D. stay at home A. Christ B. hairy C. field D. parking lot A. last night B. arise C. laboratory D. or A. magnesium B. telephone C. boulder D. teammate A. fuse B. prime C. ago D. think