Which of the following types of questions normally begins with an interrogatory expression?

The type of question that typically begins with an interrogatory expression is open-ended questions. These questions are designed to elicit more detailed responses and invite the respondent to elaborate on their thoughts or feelings. Open-ended questions often start with words like "how," "what," "why," or "tell me about," encouraging a fuller discussion rather than a simple one-word reply.

This type of questioning is particularly useful in educational contexts, as it promotes critical thinking and allows instructors to gain deeper insights into a learner’s understanding, experiences, or opinions. In contrast, the other types of questions each have specific functions and structures that do not inherently require an interrogatory expression at the beginning. For instance, yes or no questions typically seek a straightforward affirmative or negative response, leading questions are structured to guide respondents towards a particular answer, and thought-provoking questions might not always use a typical interrogatory format.