Question

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

Explanation:

The first part states Kiera is an experienced speed - chess player, and the second part says she still struggles. There is a contrast. "But" is used to show contrast. Also, a semicolon before "but" is not needed as the two parts are not independent clauses that require a stronger separation. "So" indicates a cause - and - effect relationship which is not present here.

Answer:

player but