To create Matching questions, you have to provide a minimum of two questions and 3 answers. You can provide wrong answers by providing a blank question field when giving an answer.
Here are some examples of correct answers:
These are some examples of wrong answers:
In the case of the images above, both the answers Britain and Vietnam have blank question slots. These answers are wrong because of the do not match any of the question text.
Once you have finished making your questions and answers, press Save changes.
Once you have finished writing the questions and answers then preview it, the result should look like this: