Choose the phrase that best complete the sentence

_________ tenga los libros de biología

a. yo creo que
b. yo sé que
c. Dudo que
d. Have que

it is A

Dudo que

To choose the correct phrase that best completes the sentence, "_______ tenga los libros de biología," let's analyze each option:

a. "yo creo que" - This phrase translates to "I believe that." While it is a grammatically correct option, it does not directly address the topic of having biology books.

b. "yo sé que" - This phrase translates to "I know that." This option is more suitable since it conveys a certainty that the person mentioned indeed has the biology books.

c. "Dudo que" - This phrase translates to "I doubt that." It does not fit the context of the sentence since it expresses skepticism rather than affirming the possession of biology books.

d. "Have que" - This phrase does not make sense in this context.

Therefore, the correct phrase that best completes the sentence is option b. "yo sé que."

Answer is A.