Consonant doubling applies when a mono-syllabic verb ending in a single consonant has a ………………. vowel. A. short B. long C. diphthong D. triphthongs

Understanding Consonant Doubling

To determine the correct answer to the question about consonant doubling, let’s break down what is being asked. Consonant doubling occurs in certain cases when spelling mono-syllabic verbs, particularly those that end in a single consonant preceded by a vowel.

1. Consonant Doubling Rule:

   • Consonant doubling typically happens when a mono-syllabic verb ends with a single consonant that is preceded by a vowel.

2. Vowel Considerations:

   • The vowel that precedes the consonant must be a short vowel for the consonant doubling to take effect. Examples include words like "run" becoming "running" or "sit" becoming "sitting."

Final Analysis

Based on the above explanation, the correct answer to the question is:

A. short

In summary, consonant doubling applies when a mono-syllabic verb ending in a single consonant has a short vowel preceding it.