Research frameworks can improve your research paper by giving real evidence from a professional, to show statistical data results OR direct quotes, rather than trying to persuade someone just with your own knowledge.
American sign lanuguage is good because it help communicate with others if you have any type of disorder. It also can be bad because if the person is misunderstood you wouldnt be able to fix it, for they will be misunderstood again.
.The only sentence that contains a parallel structure is option B. Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal
Options A,C and D are not ´parallel structures because they do not carry the same tense
Parallel structure means that the items included in a list must be in the same form, in this case all main verbs are in the past simple
