53. I’m afraid I can’t keep _______ my classmates as I’ve missed so many lessons. I have to ask my teacher for help.
_______ in the accident.
_____ for the boy who worked 14 hours a day.
At the head of the procession _______, each holding a red flag in his or her hand.
— Look, there ______. — Oh, there _______.
_______, we continued our way.