19)When a speaker is being vocal but not verbal;that is known as ...
a gesture
b paralanguage
c implicature
d body language


غیر واضح ...( 20


it is identified as a change in intonation and stress while speaking
الجواب
تعريف
prosody


21)Shruging the shoulders is a visual sign that could be equivalent
a I disapprove it
b I dislike it
c I don't know
d I forgot to do it