My father has worked for 20 years in the field of medicine, so he has_______ a huge amount of experience.
He argued __________ smoking, and insisted that it was ____________ argument that smoking is harmful to health.
He had to do an extra job after work, for he had a big family to ___________.
26. He asked us to write an article in_____________ of pollution caused by the nearby factories.
______________ that he was in great danger, Eric walked deeper into the forest.
A small plane crashed into a hillside five miles east of the city, __________ all four people on board.