1-2B 〜間に…

Question 1

What does this grammar mean?
お母さんが昼寝している間に、子供達は遊びに出かけた。

Answer 1

While ~ was happening, … changed/happened. The section action expresses a momentary action or change.

Question 2

The kids went outside to play while their mother took a nap.

Answer 2

お母さんが昼寝している間に、子供達は遊びに出かけた。

Question 3

The grass got really long while I was away on my trip.

Answer 3

私が旅行で留守の間に、庭に草がたくさん生えてしまった。

Question 4

It seems the delivery man came while I was in the bath.

Answer 4

お風呂に入っている間に、配達の人が来たようだ。