Question

Choose the word or phrase that best completes the sentence.
____________ you wait or come back later is up to you.
a) If
b) That
c) When
d) Whether

Answer 1

Hint:Conjugation refers to the complete set of inflected forms of a verb. It is a class of verbs having the same inflectional forms.

Complete answer:
In the given question, we have to find out which of the options given in the question correctly represent a choice in the question, or alternatives.
Let us thus analyze the options given to us in this question-
Option (a.) 'if' is defined as ‘assuming that, in the circumstances, that; used to introduce a condition or.’Therefore, option (a.) is incorrect as there is no condition in the sentence.
Option (b.) ‘that' is defined as ‘connecting noun clause (as involving reported speech etc.); introducing a subordinate noun clause.’
Therefore, option (b.) is incorrect as nothing is being connected by the word in the blank.
Option (c.) ‘when' is defined as ‘at what time.’
Therefore, option (c.) is incorrect as no time implication is specified or implied in the sentence.
Option (d.) ‘whether' is defined as ‘used to introduce a disjunctive adverbial clause which qualifies the main clause of the sentence (with correlative or).’
Therefore, option (d.) is correct as this option correctly presents the alternatives in the sentence in question.

Note:
In this question, it will be helpful for the student to recall what the concept of adverbial clauses is. An adverbial clause is a subordinate clause that functions as an adverb within the main clause.