The correct article to use before "outside" is "an" because the word "outside" starts with a vowel sound. The article "an" is always used before vowel sounds for smoother pronunciation.
The sentence becomes:
If we hurry, there’s still an outside chance of catching the plane.
The correct article is "an".
Each question has a sentence that has an underlined part. Choose the option which rephrases the underlined part in the most appropriate manner in terms of grammar and usage.
In an attempt to boost their profits, many edible oil-producing companies have been engaging themselves in propaganda against commonly used oils and promoting exotic and expensive varieties of oils \(\underline{as\ more\ healthier\ options.} \)