. When it comes to bringing up children, some people say ____ discipline produces __ ____ happy, well-behaved child.
——Why are the housing prices in big cities going up all the time? ——One reason is that people are__________ into overcrowded cities in great numbers.
The woman sold the eggs ________ seven dollars and they were sold ________ half price.
I’ve kept up a friendship with a girl whom I was at school ________ twenty years ago.
In the experiment we kept a watchful eye ________ the developments and recorded every detail.
Books are the most important records we keep ________ man’s thoughts, ideas and feelings.