A. virus B. arrowhead C. rule D. noise A. at most B. violet C. reuse D. uniform A. omen B. challenging C. catch fire D. quiet A. doorway B. convenience C. ticket D. read A. how old B. scholar C. educated D. hall A. out B. wealthy C. cry D. such that A. push-up B. anniversary C. spokeswoman D. remember A. strength B. behave C. tied D. follow A. priest B. dirty C. ninety D. hull A. portray B. strict C. spiral D. Mars