He insisted _____ being paid the full sum.
At our next meeting Mr. Mill will be speaking _____ the early development of surgery.
I sent _____ the doctor without any delay because my father had started vomiting blood.
I’ll have to think _____ this before I give you an answer.
The teacher explained the principles of nuclear fission ____ the class.
If you don’t know what this means, refer _____ the dictionary.
He stood looking _____ the picture for a long time.
I am intending to resign _____ the committee.
The chance which he had looked ____ was now freely offered to him.
The old lady thanked me _____ helping her across the street.
Water pollution, of course, is not new. We’ve worried ____ it for years.
I introduced Terry _____ Janet, 2 years before they were married.
They all praised her _____ being brave.
In the Roman numerals, C stands _____ one hundred.
Have you replied _____ her letter?
The book speaks _____ the writer’s childhood.
He really succeeds _____ anything he really puts his mind to.
The ice-cream tasted _____ soap.
They knocked him down and robbed him _____ his watch.
She would sit for hours listening _____ the songs of the birds.
