The old man had three sons, all of ____ died during World War Ⅱ.
— What made you so upset? — ______ the exam.
Lucy switched on the engine and the car _______ in a cloud of dust.
He likes going snowboarding on that hill _______ snow all the year round.
_______, or he’ll be more angry.
The first step is finished. What do you suggest _______ next?