what happens during lunch time 是將來時
what's happening outside?是現(xiàn)在時
what happens during lunch time What's happening outside?
what happens during lunch time What's happening outside?
為什么第一句的 happens 要加s,但我知道問句里動詞一定要變原形.像是 what happen during lunch time 第二句What's happening outside?為什么這可以用助動詞is,那what happened to you?為什么不能用what did happed to you?
急
我問：what happens during lunch time?為什么可加S，問舉中動詞不是要變原型？
為什么第一句的 happens 要加s,但我知道問句里動詞一定要變原形.像是 what happen during lunch time 第二句What's happening outside?為什么這可以用助動詞is,那what happened to you?為什么不能用what did happed to you?
急
我問：what happens during lunch time?為什么可加S，問舉中動詞不是要變原型？
英語人氣：280 ℃時間：2020-04-29 09:40:38
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