There are various ways to express the phrase "raised a question" in writing or speech. One common alternative expression is "posed a question," which means to ask a question in a formal or informal manner. Another synonym is "asked about," which is an informal way of raising a query or inquiry. Also, the phrase "brought up a topic" or "introduced a subject" can be used to refer to the act of starting a discussion or debate. One more alternative expression is "presented a query," which implies asking a question for the purpose of gaining clarity or information. In summary, there are numerous ways to convey the meaning of "raised a question" depending on the context and tone of the discussion.