D
by the time + 一般現(xiàn)在時,主句用將來完成時
by the time + 過去時間時,主句用過去完成時
夜深了,早睡,還望及時采納.
They will have learned English for 8years by the time they from junior high next year.
They will have learned English for 8years by the time they from junior high next year.
A graduating B will have graduated C will gaduate D graduate
為什么選D，
A graduating B will have graduated C will gaduate D graduate
為什么選D，
英語人氣：464 ℃時間：2019-08-22 13:23:58
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