What should you include in the introduction of a research report? a summary of all your main points
a sentence stating the claim or main point of your report
examples that prove your point or claim
evidence that supports the claim you will make

answer; /// the correct answer to the above statement is (a) because of the decline on native american labor forces;

the answer is "a" although apex might say best book of the year.

to eliminate ambiguous remote or broad reference it is necessary to focus on anaphoric reference. by definition "anaphoric reference means that a word in a text refers back to other ideas in the text for its meaning." the references should be clear and leave no room for ambiguity.

in the first case the pronoun it probably refers to the car but it has not been mentioned before so we should replace it for the car. in doing so the statement becomes clear.

in sentence number   two   the pronoun he refers to charles dickens the author. yet, the first half of the sentence is about the book a tale of two cities. to repair this it would be better to rephrase the first half : after i read   a tale of two cities by dickens, he so as to remove the remote reference.