Fill in the blanks with the appropriate article.
Can you speak ____ Spanish?

No article

The answer is no article.

The word "Spanish" is a general noun, so we don't need to use an article. We could also say "Can you speak Spanish?" or "Can you speak the Spanish language?", but the first option is more common.

The definite article "the" is used to refer to a specific noun, such as "the Spanish language". The indefinite articles "a" and "an" are used to refer to a general noun, such as "a language" or "an accent".