My father and i, along with my grandfather’s .

which element is necessary to complete the sentence?

predicate
phrase
subject
modifier

Predicate

Explanation:

A predicate is a part of a sentence that tells us about the action of the subject. A predicate includes a verb or a modifier governed by the verb in it.

For Example,

The element necessary to complete the sentence is a predicate. In order to complete the sentence, a predicate, that is, action needs to be added.

What is done by the father and 'I' with the help of the 'grandfather' is missing.

So, the correct answer is first option.

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the climate of each region is different from one another.