Question

Fill in the blank with the most appropriate word.
I always pay _____ credit card.

• A. in
• B. on
• C. at
• D. by

Answer 1

The correct option is D by

Answer : D

Prepositions are words that indicate relationships with the other words in the sentence. Prepositions of manner are used to describe / express "how" something happened or is done.

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

• by : it is used to talk about actions (usually formed by gerund / noun); it is used to indicate the means of achieving / doing something
• with : used to refer to objects or tools used to achieve something (usually followed by a noun)
• on : not used as a preposition of manner
• in : not used as a preposition of manner

The sentence in the question describes the way in which the speaker makes the payments. Therefore, the suitable preposition here is "by".

Thus, the correct complete sentence is:

I always pay BY credit card.