68. Which of the following words contains at least one digraph?
Answer: B
Rough contains at least one digraph.
The word "rough" includes the digraph "gh," which represents a unique sound in the English language. This characteristic makes it the correct choice among the provided options.
A) Corn
The word "corn" does not contain any digraphs. The letters "c," "o," "r," and "n" each represent distinct sounds and do not combine to form a single phoneme.
B) Rough
The word "rough" contains the digraph "gh," which is a combination of letters that produces a single sound, specifically the /f/ sound in this context. This feature qualifies it as the correct answer.
C) Frankly
The word "frankly" does not have any digraphs. Each letter in "frankly" contributes its own sound without forming any combination that creates a single phoneme.
D) Capitalize
The word "capitalize" also lacks any digraphs. The letters in this word function independently, and none of them combine to represent a unique sound.
Conclusion
The word "rough" is definitively the only option that contains a digraph, as indicated by the presence of "gh." In contrast, all other options consist of letters that do not form any digraphs, thus failing to meet the criteria presented in the question.