The reason to make two different designs for Spanish and Chinese texts is because, although the texts are parallel, comparing with the Spanish texts, the Chinese texts are more difficult to understand because of the different meanings but the same word (including some annotated DMs 4 ).
we consider that, for a Chinese text, it is better to remove all the DMs and mix the correct answers to let the users to choose so that they can understand the text better by filling the DMs.