—Which of those T-shirts do you like most?—________ of them. They are both nice and comfortable to wear.
I’ll be free ___ seven o’clock.
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.