Question

Fill in the blank with the most appropriate word:
Let's go _______ a walk.

• A. at
• B. to
• C. in
• D. for

Answer 1

The correct option is D for

Answer : D

Prepositions are words that are used to show relation of a noun to another element (noun/adjective/verb) in the sentence. Prepositions of Cause, Reason, Purpose are used to show reason of happening.

Let's take a look at the option:

• "at" & "in" are NOT prepositions of Cause/Reason/Purpose
• to : It is usually used to show the purpose of the noun; it connects noun to a verb
• for : It IS a preposition of Cause/Reason/Purpose and it is used to show the purpose of the noun. It generally connects a noun with another noun or adjective. If it connects a noun to a verb, usually the verb will be in it's gerund form.

The most appropriate word here is "for".

Thus, the correct complete sentence is:

Let's go FOR a walk.