We suddenly saw the bus about to leave and had to run _____ to catch it.
_____ was known to all , Willian had broken his promise ______ he would give us a rise.
John knocked at the door for nearly five minutes____his wife opened it.
---The thread of my kite broke and it flew away.---I told you it would easily break_____was the weakest.
They were surprised that a child could work out the problem____they themselves couldn't.
.I had been puzzled over the problem for over an hour without any result, _____ all at once thesolution flashed across my mind.