Which sentence uses a verb that agrees with its subject?
a.
brazil, of all the south american countries, are the only one where portuguese is the main language.
b.
a tornado during the late summer months is typical for many midwestern states.
c.
the lettuce in those salads are probably not organic.
d.
the nurses on duty at the hospital appears very tired.

Consider tim o’brien’s story "ambush." what differences do you see between how o’brien dealt with killing an enemy soldier in the moment of battle compared to looking back on the moment later in life? what might this contrast reveal about the effects of war?

As a representative of a pharmaceutical company, you have been asked to speak to a group of physicians at a medical conference to introduce a new drug. when discussing how the drug works, which strategy is not appropriate?

Read the excerpt from part 2 of “to build a fire.” to build the fire he had been forced to remove his mittens, and the fingers had quickly gone numb. his pace of four miles an hour had kept his heart pumping blood to the surface of his body and to all the extremities. but the instant he stopped, the action of the pump eased down. which words from the excerpt provide context clues for the underlined word?