数学 高校生 約3年前

(5)はwas drowningになるのですが、何故ですか？？教えていただきたいです

(3) She was belonging to many sport teams in her high school. (4) We are living in a hotel now, but we'1ll find a new house soon (5) He drowned in the pond, but his father saved him. (6) He is being lazy today, even though. he usually is not.