Question

which is the best way to complete the text? reba was an experienced speed chess still struggled with the pace of competitive tournaments. player; but player, but player but

Explanation:

A semicolon is used to separate two independent clauses that are closely related in thought. Here, "Reba was an experienced speed - chess player" and "still struggled with the pace of competitive tournaments" are two related independent clauses. Using a comma before "but" is the correct punctuation for joining two independent clauses with a coordinating conjunction.

Answer:

B. player, but