Question

Fill in the blank with a suitable preposition:
They took my temperature _________ the operation.

• A. Before
• B. By
• C. No preposition
  
• D. Of

Answer 1

The correct option is A Before

Answer : A

Prepositions are words that indicate relationships with the other words in the sentence. Prepositions of time are used to denote time in a sentence.

Let's look at the usage of various alternatives in the option as preposition of time:

• before : means "A time earlier than"
• by : to mean at or before a certain time and not after it
• of : not generally used as a preposition of time but sometimes used to express time in relation to the following hour

Upon reading the sentence in the question, we understand that the temperature was taken prior to the operation. Therefore, the suitable preposition here is "before".

Thus, the correct complete sentence is:

They took my temperature BEFORE the operation.