Grammar Quiz No.134

N4Word Choice開く vs 開ける (transitivity)

風で窓が___。

Q. Which verb fits 'the window opened (by itself)'?

Translation

The window opened in the wind.

Explanation

開く(あく) is intransitive — things open on their own: 窓が開いた. 開ける is transitive and needs someone doing the opening (窓を開けた).