Directions: In each of the following sentences, the underlined portion may contain an error of subject-verb agreement. If there is no error, then choice A is correct.

1. While many students of foreign languages start out with the best of intentions, many learners quickly discover that the effort involved in memorizing endless vocabulary words and doing countless drills are daunting.

  1. the effort involved in memorizing endless vocabulary words and doing countless drills are daunting
  2. the efforts involved in the memorizing of endless vocabulary words and doing countless drills are daunting
  3. the effort involved with memorizing endless vocabulary words and in doing countless drills is daunting
  4. the effort involved in the memorization of endless vocabulary words and doing countless drills is daunting
  5. the effort involved in memorizing endless vocabulary words and in doing countless drills is daunting

2. With the advent of better imaging technologies and space-based telescopes, the number of planets discovered outside our solar system have steadily increased.

  1. With the advent of better imaging technologies and space-based telescopes, the number of planets discovered outside our solar system have steadily increased
  2. With the advent of better imaging technologies and space-based telescopes, the number of planets discovered outside our solar system has steadily increased
  3. Steadily increasing due to the advent of better imaging technologies and space-based telescopes have been the number of planets discovered outside our solar system
  4. Better imaging technologies and space-based telescopes have steadily increased the discovery of planets outside our solar system
  5. The number of planets discovered outside our solar system are steadily increasing with the advent of better imaging telescopes and space-based telescopes

3. Environmentalists report that much of the increase in levels of dangerous mercury ingested by Americans is due to high concentrations of the element in tuna and other fish.

  1. much of the increase in levels of dangerous mercury ingested by Americans is due to high concentrations
  2. much of the increases in dangerous levels of mercury that Americans ingest are due to high concentrations
  3. much of the dangerous increases in the level of mercury Americans ingest are due to a high concentration
  4. many of the increase in dangerous levels of mercury ingested by Americans is due to high concentrations
  5. many of the levels of increase in dangerous mercury ingested by Americans are due to a high concentration

4. Media analysts differ on the impact that news coverage has on the results of a presidential election, but all agree that the aggregate effect of choices by individual editors and journalists determine, to a large degree, the public’s perception of a candidate.

  1. news coverage has on the results of a presidential election, but all agree that the aggregate effect of choices by individual editors and journalists determine, to a large degree, the public’s perception of a candidate
  2. news coverage have on the results of a presidential election, but all agree that the aggregate effect of individual choices of editors and journalists determine the public’s perception of a candidate to a large degree
  3. news coverage have on the results of a presidential election, but all agree that the individual choices of editors and journalists determine, to a large degree, the public’s perception of a candidate
  4. news coverage has on the results of a presidential election, but all agree that the aggregate effect of choices by individual editors and journalists determines, to a large degree, the public’s perception of a candidate
  5. news coverage has on the results of a presidential election, though all agree, to a large degree, that the aggregate effects of choices by individual editors and journalists determines the public’s perception of a candidate

5. In certain emotionally charged cases, especially those involving domestic issues, defense lawyers realize that while the facts may be unfavorable for their clients, they may still win the case if the jury sympathize with the defendant’s plight.

  1. defense lawyers realize that while the facts may be unfavorable for their clients, they may still win the case if the jury sympathize with the defendant’s plight
  2. the realization by defense lawyers is that the while the facts may be unfavorable towards their clients, they may still win the case if the jury sympathize with the plight of the defendant
  3. defense lawyers realize that while the facts may be unfavorable to their client’s case, they may still win if the jury sympathizes with the defendant’s plight
  4. defense lawyers realize that while the facts may be unfavorable towards their client, they may still win if the jury sympathizes with the defendant’s plight
  5. defense lawyers realize that although the facts may be unfavorable for their client, they might still win if the jury sympathizes with their plight

Answers

  1. E
  2. B
  3. A
  4. D
  5. C