Select the correct alternative to fill in the blank with the correct preposition/prepositional phrase in the following sentence.
____ a guess, there were 200 persons in the meeting.
Show answer & explanation
Correct answer: D
Explanation
'At a guess' is a standard idiomatic prepositional phrase in English used to indicate that the information being provided (in this case, the number of people) is an estimate or an approximate calculation rather than a confirmed fact.
Therefore, the complete sentence is:
'At a guess, there were 200 persons in the meeting.'