Dr. Rocío Paola Caballero-Gill is a paleoceanographer. This means that Dr. Caballero-Gill doesn’t just study oceans as they are today.

Question

Dr. Roc&iacute;o Paola Caballero-Gill is a paleoceanographer. This means that Dr. Caballero-Gill doesn&rsquo;t just study oceans as they are today. She uses chemistry and fossil evidence ______ blank oceans as they were in the past. Which choice completes the text so that it conforms to the conventions of Standard English?

Accepted Answer

Choice B is the best answer. The convention being tested is the use of verb forms within a sentence. The nonfinite to-infinitive verb &ldquo;to study&rdquo; is correctly used to form a subordinate clause that indies what Dr. Caballero-Gill uses chemistry and fossil evidence for (to study oceans as they were in the past). Choice A is incorrect because it results in an ungrammatical sentence. The finite verb &ldquo;has studied&rdquo; can&rsquo;t be used in this way to form a subordinate clause that indies what Dr. Caballero-Gill uses the evidence for. Choice C is incorrect because it results in an ungrammatical sentence. The finite verb &ldquo;studied&rdquo; can&rsquo;t be used in this way to form a subordinate clause that indies what Dr. Caballero-Gill uses the evidence for. Choice D is incorrect because it results in an ungrammatical sentence. The finite verb &ldquo;studies&rdquo; can&rsquo;t be used in this way to form a subordinate clause that indies what Dr. Caballero-Gill uses the evidence for.

Question dr-roc