Given below are sentences that use discourse markers/expressions to make them complete. Identify the most appropriate discourse marker/expression and mark your answer accordingly in the Answer Sheet: __________, did you know Ravi has a new job?

Step-by-step solution

The sentence introduces a new, unrelated topic or an incidental piece of information into the conversation. The discourse marker "By the way" is used to introduce a new topic or to add a side comment. "For one thing" is used to introduce one of several reasons. "In the first place" is used to introduce the first of a series of points. "As a result" is used to indicate a consequence. Therefore, "By the way" is the most appropriate discourse marker to complete the sentence.