Answer: beat
Explanation: In any sentence where words like “ago,” “before,” “long ago,” “long since,” “yesterday,” “last night/week/month/year,” “previous day,” “the day before,” and similar expressions indicating the past are mentioned, the sentence should be in the past indefinite tense.

Since “last night” is mentioned here, the sentence will be in the past indefinite tense, and the present and past forms of “beat” are the same. Therefore, the correct answer will be “beat.”