4. 单选题 The headmaster hurried to the concert hall only ________ the speaker _______. A to find; left B to find; gone C finding; left D finding; gone

The correct answer to the given question is B: "to find; gone."1378 This choice correctly uses the infinitive "to find" to express an unexpected result, indicating that the headmaster's action of hurrying to the concert hall led to the discovery that the speaker had already left. The word "gone" is the appropriate term to describe the state of the speaker, who is no longer present at the location.1378 The other options do not convey the same meaning or grammatical structure that fits the context of the sentence.2456