Dictionary / Vocabulary / 問題集
もんだいしゅう
question collection; problem collection; problem set; workbook
公式問題集には"受け身の現在進行形"と説明されています。
In the official question collection it is explained as being "passive voice of the present continuous tense".
「この問題集、買おっかな」「やらないくせに」「なんか言った?」
"I wonder if I should buy this workbook." "Even though you won't do the exercises?" "Did you say something?"