Question

which text best completes the sentence? the biology textbook i used this past year has been ________. the most useful compared to the chemistry textbook useful than the chemistry textbook more useful than any other textbook more useful than any book

Explanation:

The comparative form "more useful" is correct for comparing two things. When comparing the biology textbook to all other textbooks, "more useful than any other textbook" is the most appropriate and grammatically - correct option. The first two options compare to just the chemistry textbook in an incorrect superlative/missing - comparative - form way. The last option compares to any book which is too broad as it includes non - textbooks.

Answer:

more useful than any other textbook