30. It was so noisy that I couldn’t concentrate _____________ my lesson.
A. in B. at C. from D. on
IV. Read the following passage and choose the best answer for each question.
Most young couples have meals regularly in their parents’ home with little or no pay, and give their
children to the care of old couple free of charge. Investigations have shown that parents of many couples
don’t mind providing meals and caring for their children. However, this practice shouldn’t become an
accepted social custom.
The old couples’ expense on food has already increased while young couples spend more on clothing
and furnishing and less on food. If this trend continues, many young couples might take these privileges for
granted and become more dependent.
It is not the right for young peoples to make the use of the old couples’ love, not only because our
nation is well – known for its special respect paid to the elderly , but also because the young must become
independent. What young people should do is to become more considerate towards their old parents.
After years of hard work, they are worthy of such consideration.
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