(4) When we derive one word from another, we ………………
a. Change its class, for example, from being a Verb into a Noun
b. Change its tense, for example , from being Past into Present
c. Both of the above
d. None of the above
في المحاضره 4 والمباشره حلها a
في المحاضره 13 حلها c
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يعني وش نختار !!!!!!!!!