Select the most appropriate option to fill in the blank.

I ______ wish I hadn't invited him.

almost

The most appropriate option to fill in the blank is:

☀ almost

The sentence would read: "I almost wish I hadn't invited him."

Explanation: The word "almost" here adds emphasis to the speaker's regret about inviting him. It suggests that the speaker's regret is strong enough to almost wish they hadn't invited him, but there might be some hesitation or conflicting feelings. The other options don't fit the context:

• About: This preposition doesn't fit the structure of the sentence.

• Else: This doesn't fit the context of expressing a regretful sentiment.

• Not: This doesn't fit the context of the sentence and doesn't add to the meaning.