Question

choose the conjunction that best completes each sentence. haruko enjoys tennis, she rarely has time to play. accomplished chess player, he often competes in tournaments. you want to learn karate, you should sign up for lessons.

Explanation:

• "But" is incorrect here because when using "but" to connect two clauses, it is usually placed between the two clauses without a comma before it in this structure. For example, "She likes it but she can't afford it".
• "Although" is a subordinating conjunction. The correct structure is "Although + clause, + main clause". Here, "Haruko enjoys tennis" is the subordinate clause (introduced by "Although") and "she rarely has time to play" is the main clause. This shows the contrast between her enjoyment and lack of time.
• "Until" means up to a certain time. It does not fit the context of showing a contrast between enjoying an activity and not having time for it.

Answer:

Although