单项选择题
A.about B.for C.to D.in
The training is（）for every type of communication.A.wort...
单项选择题The training is（）for every type of communication.
A.worthless B.invaluable C.costless D.value
But even if you never give another speech in your life,...
单项选择题But even if you never give another speech in your life, you still have much to（）from studying public speaking.
A.gain B.grain C.train D.rain
The interaction of these seven elements is（）determines ...
单项选择题The interaction of these seven elements is（）determines the outcome in any instance of speech communication.
A.what B.that C.how D.which
