The correct answer is b. to show
This question contains a sentence that uses the infinitive.
So the sentence becomes :
"Mother takes great pleasure to show pictures of our childhood."
In learning about English grammar, especially when it comes to verbs, you will encounter the term infinitive.
What are infinitives?
The meaning of the infinitive is the basic form of a verb.
Simply put, the basic pattern of the infinitive is
To + Verb 1
Therefore, if in tenses we know that verbs can change based on the type of tenses, while in this infinitive the verb does not change at all, still using the basic verb form/verb1.
In essence, to indicate a sentence using the infinitive, it can be seen that there is the word "to" which is followed by the first form of verb / V1
Infinitive verbs have many functions, including:
- as a noun
- As a substitute for subject,
- As a complement to the subject,
- Or direct object in the middle of a sentence.
- In lieu of an adjective
- As a substitute for an adverb in a sentence.
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