These questions may require that you identify either an author's assumption or implication.

For examples of fill in blank questions that see some of the older LSAT PrepTests, such as LSAT PrepTest 7, Section 4, Question 18; LSAT PrepTest 13, Section 2, Question 9; and LSAT PrepTest 18, Section 4, Question 4. Although it's been awhile since the LSAT contained a question of this nature, it could return.

On the more recent LSAT PrepTests, however, you may treat these questions just as you would inference questions -- seek what must be true based on the information provided. Of utmost importance is to not resort to guesswork, and not to attribute opinions to authors that are unwarranted. Clear your mind of all outside knowledge and focus solely on what the passage states. See LSAT PrepTest 48, Section 1, Question 6, in particular, see choice (B) and "should", and choice (E), "rightly". Be careful when you encounter words such as these that express opinion.