He apologised to me for his ________ my letter.
He is a successful businessman and he ___ his success more to luck than to ability.
__________is no possibility __________Bob can win the first prize in the match.
The police recommended parents __________their children under 12 to ride to school for safety.
----I wonder why Jane looks worried today.----I’m not sure, but she a small accident driving here.
We tried ______ to persuade him to stay home, but at last, he went to the construction site despite his bad illness.