The answer would be number 1.
(D) pig fly
It shows the action which is being done upon the subject of the sentence which is the pig.
In "Mending Wall", by Robert Frost, the line from the poem that most strongly supports the idea that some people don't consider the implications of what they've been taught is option <em>D. "He will not go beyond his father's saying." </em>The narrator is doubtful about mending the wall, but the neighbor repeats his father´s words and traditions 'Good fences make good neighbors', and acts in consequence.
C. is. the correct answer
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