题目内容：

Find the only mistake in each line and correct it.

English is the widest used language in the history of                     21. 1.

our planet. One in every seven human beings can speak it.

More than half of the world’s books and three quarters of

international mails write in English. Of all languages, English has          22. 2.

the largest vocabulary — perhaps as much as two million words.           23. 3.

However, let’s face it: English is crazy language. There                  24. 4.

is no egg in an eggplant, either pine nor apple in a pineapple              25. 5.

and no ham in a hamburger. Sweet-meats are candy, when                26. 6.

sweetbreads, which aren’t sweet, are meat.

We take English for granted. But when we explore its paradoxes, (矛盾)

we find that quicksand can work slowly, boxing rings are square,

public bathrooms have no baths in it.                            27. 7.

English shown the creativity of human beings is invented           28. 8.

by creative people. That’s why, when stars are out, they are

visible; but when the light are out, they are invisible.               29. 9.

If you continue to discover more, you find the beauty of            30. 10.

the language.