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Question 1 of 6
1
of 6
What rule is being used when the word 'refer' becomes 'referring' when adding the suffix -ing?
Select one answer
Just add -ing.
Remove the 'e' and add -ing.
Double the consonant and add -ing.
The root word is 'refer'. It has two syllables and the final syllable is stressed. What happens when the -ing suffix is added?
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