Question

Fill in the blank with the most appropriate word.

We met Ken's brother last Saturday_____they came for dinner.

• A. But
• B. Until
• C. When
• D. So

Answer 1

The correct option is C When

A preposition is a word which comes before a noun or a pronoun and establishes a relationship between the elements of a clause or words. Option C)when is correct as it indicates a time. The other options are wrong as but, until , and so indicate difference , up to, and cause respectively. These uses don't fit in the given question. The correct answer is C)when.