A. 3sin3x+C B. -3sin3x+C C. (1/3)sin3x+C D. -(1/3)sin3x+C
A. service B. reservation C. help D. diet
A. at B. for C. on D. off
A. Before B. When C. While D. As
A. lest B. in case C. for fear D. so that