连词and, but, or, so的用法 — 英语词汇题
题目
用 and, but, or, so 填空，每词限用一次。
You can join the chess club ___ the art club, but you cannot join both. Ben is careful ___ patient; he checks each answer twice and never rushes. The task looked easy, ___ it took Mia an hour to finish. The rain was heavy, ___ the match was canceled.