翻译下面句子，此题为附加题，不计入总分。（10分）

1.我们班上有50名学生，他们中有23名是从农村来的。

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2.他们明天将去参观生产计算机的工厂。

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3. 你认识正在和我们校长谈话的那位老太太吗？

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4.我将永远不会忘记我第一次上学的那一天。

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5. 昨天我从图书馆借了5本书，其中2本是关于音乐的。

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. —Did you have ________ fun at the party?

—Yes. It’s ________ shame that you missed it.

Only by working hard can you ______ the goal.

—Did you see a man in black pass by just now?

—No, sir. I ______ a newspaper.

We asked the teacher to explain _______.

We are often _____ by the doctors to eat more healthy food and take plenty of physical exercise.

The country has _______ great changes and become a developed one.

My boss insisted that I _______ the work before ten o’clock tonight.

Every time ______ they met, they would talk several hours together about the persons and things _______ they remembered in the middle school.

______ you make a promise, you should keep it.