Decide whether each sentence is more appropriate for an informed audience or a general audience. robert frost crafts his poem using a controlling metaphor. in his poem, robert frost compares two ideas and then continues to use the comparison throughout the rest of the poem. because an outbreak of ebola zaire is so deadly, those who contract ebola must be quarantined in a biocontainment zone. ebola, a highly contagious virus, is so deadly that people who test positive for the virus must be kept away from healthy people.