英语选择题Hetransplantedthetreetotheg
He tranlanted the tree to the garden ___ it was the best time for it . A where B when C that D until 答案是：B 请说明为什么不选that?
when 这里是是时间状语 讲的是 对它而然是最佳的时间。 that 语法上说不通 而且本身that也没有意义