Find the part of the sentence that contains an error:
This book is (1) / gooder than (2) / the one we read (3) / last month(4).
Show answer & explanation
Correct answer: B
Explanation
Correct Answer
gooder than (2)
Explanation
The second part of the sentence contains a grammatical error involving the incorrect formation of an irregular adjective.
The sentence uses the keyword "than", which dictates that two items are being compared ("this book" and "the one we read last month"). This structure requires the comparative degree.
While regular single-syllable adjectives form their comparative degree by adding the suffix "-er" (e.g., tall becomes taller), the adjective "good" is entirely irregular. It does not follow standard suffix rules, making the word "gooder" completely incorrect. The proper degrees of comparison for this word are:
Positive: Good
Comparative: Better
Superlative: Best
Therefore, part 2 must be corrected to "better than".
Key Points
Irregular adjectives like good - better - best and bad - worse - worst are classic traps in competitive exams. Never apply "-er" or "-est" suffixes to them.