Choose the word or set of words that, when inserted in the sentence, best fits the meaning of the sentence as a whole.

Numerous illnesses that were once difficult to ------- may now be diagnosed through ------- blood tests.

1. detect . . perfunctory
2. facilitate . . tedious
3. administer . . pre-emptive
4. treat . . grueling
5. observe . . inconvenient

Correct Answer: A

Here's Why:

It makes sense to say that certain diseases are no longer difficult to “detect” now that doctors can diagnose them through routine, or “perfunctory,” tests.

Difficulty: Medium

Question Type: Sentence Completions