Once a student is caught in the exam, he will be severely punished.

Oh, it’s too difficult for me ____________ the taskin such a short time.—Cheer up! I am sure you can.

If the traffic hadn’t been so heavy, I could have been back by 6 o’clock— What a pity! Tina _____ here to see you.[ ]

Would you like to play the game with us，Tom— _____________, I am coming.

As is well known, many deadly accidents carelessness and irresponsibility.