He got well-prepared for the job interview, for he couldn’t risk ____ the good opportunity.
We offered him our congratulations ___ his passing the college entrance exams.
In the dark street, there wasn’t a single person ___ she could turn for help.
___ this book and tell me what you think of it.
He decided to visit the family ___ Friday night.
Are you paying now, or shall I ______ to you?