因為那用的是過去完成時.
have /has +been
三單用has
因為后面要用過去時,studys是一般現(xiàn)代時
[變一般疑問句是要把has變?yōu)閔ave]這是誰說的
Jack has studied Chinese for 2 years.對for 2 years劃線提問!
Jack has studied Chinese for 2 years.對for 2 years劃線提問!
How long has Jack studied Chinese?
為什么不是How long have Jack studys Chinese?
(不是講當(dāng)在一般現(xiàn)在時中主語是第3人稱單數(shù)時,變一般疑問句是要把has變?yōu)閔ave嗎?Jack不是第3人稱嗎,后面怎么不用studys呢?)
How long has Jack studied Chinese?
為什么不是How long have Jack studys Chinese?
(不是講當(dāng)在一般現(xiàn)在時中主語是第3人稱單數(shù)時,變一般疑問句是要把has變?yōu)閔ave嗎?Jack不是第3人稱嗎,后面怎么不用studys呢?)
英語人氣:127 ℃時間:2019-10-24 06:20:23
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