第一单元A. purposes B. secure C. however D. convince E. projectF. failure G. unfamiliar H. furthermore I. community J. appreciateK. expert L. appropriate M. conveyed N. engaged O. assureTo be a successful speaker, it is essential for you to know why you are speaking and what you wish to accomplish by your speech. The four most common 1_ of speech are to inform, to convince, to move to action, and to entertain. Do you, like a teacher or a/a
