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On page 305 of Genki , you can see that Mary starts off each paragraph with a
day of the week and the particle that follows is different. Any reason why
friday is listed w/ NI vs the other days that all have WA? Could you replace
the WAs with NI?

The text goes as follows:

> **金曜日に** 日本人のともだちとこうえんにいきました。こうえんでともだちとはなしました。それから、レストランへいきました。たくさんたべました。
>
> **土曜日は** 一人でおてらへいきました。たくさんみせがありました。みせでおまんじゅうをかいました。
>
> **日曜日は**
> おそくおきました。おかあさんもおそくおきました。わたしはあさテレビをみました。それから、おかあさんとひるごはんをたべました。ごごは日本語をべんきょうしました。本もよみました。
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2017-03-12T19:05:04.510
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2017-03-12T20:56:42.437
2020-06-17T08:18:27.500
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question
grammar
Genki pg 305, [day of the week] NI vs [day of the week] WA
土曜日 and 日曜日 are used with は because she is changing the topic to those days
respectively. That is, since she was talking about the day before in the
_previous_ paragraph, she is now changing the topic to talk about what she is
doing on Saturday (or Sunday) in the current paragraph.

Using に with them wouldn't be wrong, but it sounds better with は in this
context because she's listing off the days in order and then dedicates a
paragraph to describing what she did. If only に were used, the days wouldn't
sound as important.

She also could have used は with 金曜日, but it doesn't matter as much as the
others because she wasn't talking about anything before, so there's no need to
emphasize 金曜日.
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2017-03-12T20:53:30.823
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2017-03-12T20:53:30.823
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answer