【１７】評論
The janitor will have accomplished all the works by the time we finish shopping and arrive home.到我們購物完回家時，管理員會完成所有工作。考點:by the timeby the time當連接詞時，意思為 “在...之前”，相當於before。會有兩種時態使用方式。1.過去事件By the time S+Ved, S+had p.p.By the time I tried to kill the mosquito, it had flown away.在我試著要打死這隻蚊子之前，它早已飛走。 (夏天到了，蚊子很惱人)2.未來事件By the time S+V, S+will have p.p.By the time the house owner returns, the theif will have run away with his money.在屋主回來之前，小偷將早搜刮錢財離開。