When filling in the Questionnaire on Balanced Diet Training Knowledge of Cooking Skills of Reducing Salt, Oil and Sugar, you can refer to the following ways to fill in the time and place:

1. Set the title of the questionnaire, for example, "Questionnaire on knowledge of balanced diet training for cooking skills of reducing salt, oil and sugar".

2. In the first part of the questionnaire, you can set some basic information about the participants, such as age, gender, occupation, etc.

3. In the second part of the questionnaire, you can ask questions about the cooking skills of reducing salt, oil and sugar. For example, you can set up some multiple-choice questions, such as "How to reduce the use of salt, oil and sugar in cooking?" Or "have you used some special cooking skills to reduce the use of salt, oil and sugar?" If yes, please give an example. "

In the third part of the questionnaire, you can ask some questions about a balanced diet. For example, "What do you think is a balanced diet?" Or "Do you understand the importance of a balanced diet?" .

At the end of the questionnaire, you can set some open-ended questions, such as "What do you think or suggest about the cooking skills of reducing salt, oil, sugar and balancing diet?" .