Not until he left his home _____ to know how important the family was for him. [ ]

__________is no possibility __________Bob can win the first prize in the match.

His grandpa was so poor at that time that he had to get up at dawn every day and walk to the factory in distance.

Your teacher will be unhappy ifyou______to school late.

Do you know how many of them will come to the birthday party–_______ I know， they will all come.