题目内容：

单句改错

1.It is these poisonous products which can cause the symptoms of flu, such as headaches and aching muscles.

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2.It is I who is going to take part in the sports meeting next week.

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3.Of the making of good books there is no end; so is there any end to their influence on man’s lives.

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4.I failed in the final examination last term and only then I realize the importance of study.

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5.It is not until yesterday afternoon that they began to discuss the main problem.

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6.Among the forests lie a little pond, in which we would swim during our childhood.

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7.It was during the 1990s when she received further education in the US.

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8.No sooner they arrived at the farm than it began to rain heavily.

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