you are in a speech contest or you are giving a talk in class, a little preparation will make your presentation organized and dynamic.
A. Either
B. On condition that
C. No matter
D. Whether
网友回答
A. Either
B. On condition that
C. No matter
(答案→)D. Whether
解析：考查连词。whether…or…不管…还是…；either…or…或者…或者… no matter后面应加疑问词，故排除。on condition that只要，条件是，不符合语境。