Fred, who had expected how it would go with his daughter, had a great worry______ his mind. A. on S. in C. with D. at
The people are ______ young workers between the age of twenty and thirty.
______ the day on, the weather got worse.
I’m pleased ______ should be done has already been done.
Do you know our town at all? No, this is the first time I ______ here.
More than one hundred got saved from the fire _____ helicopter.