Fill in the blank with the most suitable verb:
I watched TV last night but my sister _________.
A verb is used to express an occurrence, action, or state. It is the grammatical centre of the predicate in a sentence.
An auxiliary verb is a verb which gives is used in the formation of tenses, moods, tones, etc.
Option B is correct as watched indicates the use of past simple tense(did) and but indicates the use of not.
The other options are wrong as the sentence is not in the simple present and the present perfect tense.
The correct answer is B)didn't