I waIk to school___ (in/at) half past six填介词,为I waIk to school___ (in/at) half past six填介词,为什么

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I waIk to school___ (in/at) half past six填介词,为I waIk to school___ (in/at) half past six填介词,为什么

I waIk to school___ (in/at) half past six填介词,为I waIk to school___ (in/at) half past six填介词,为什么
I waIk to school___ (in/at) half past six填介词,为
I waIk to school___ (in/at) half past six填介词,为什么

I waIk to school___ (in/at) half past six填介词,为I waIk to school___ (in/at) half past six填介词,为什么
at

用介词at
表示几点用at

in。

当然是用at

At 因为是具体时间点 in 可以表示将会在某时间段内如 I will finish it in one hour.我将会在一小时内完成