Thanks to vaccines, we have eliminated some terrible, life-threatening diseases.
Select the letter of the example that does not clearly illustrate the generalization.
A) The polio vaccine has virtually eradicated that disease in the West.
B) Before the 1960s, smallpox killed about 2 million people a year, but the smallpox vaccine got rid of the disease.
C) Researchers still hope to perfect a vaccine against the deadly virus that causes HIV and AIDS.
D) For the children in the United States, a vaccine has largely eliminated whooping cough (pertussis).
C) Researchers still hope to perfect a vaccine against the deadly virus that causes HIV and AIDS.
You might also like to view...
Simple past tense refers to an action that began and ended at one time period in the
past. a. True b. False
tú: ________________
What will be an ideal response?
Complete the sentence, using the present indicative of the Spanish equivalent of the verbs provided.
¿Usted ________________ (remember) el número de teléfono de Ana?
Write complete sentences using each of the elements and the present indicative and present subjunctive where required.
yo / preferir / que / no / sentarse (tú) / allí