You won't pass the exam _____you study hard.A. if B. when C. Unless
— We couldn’t find you anywhere around 8 o’clock yesterday evening. — I’m sorry for that. I _____ in the supermarket then.
What do you think __________ if the car __________?
— I hope that I will have millions of dollars and I can buy my private plane. — ________.
–––Shall we meet at the station at 8 a.m? –––In fact we ________.The train _______until 10 a.m.
— You look so sad. What happened? — The exam _____ to be much harder than I thought.