|  | 1. | Two copies of the same book have been bought by mistake . 书买重了。
 
 
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|  | 2. | Mistakes were corrected and gaps filled . 错误改正了,缺点也弥补了。
 
 
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|  | 3. | He makes mistakes , and that very often . 他犯了错误,而且是常常犯。
 
 
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|  | 4. | It will prove his historic mistake . 这肯定是他的一个历史性的错误。
 
 
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|  | 5. | We shouldn't be indulgent towards his mistakes . 不应该姑息他的错误。
 
 
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|  | 6. | We tend to make mistakes when we do things in a hurry . 忙中不免出错。
 
 
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|  | 7. | I was conscious that i had made a mistake . 我意识到自己犯了一个错误。
 
 
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|  | 8. | There are so many mistakes that i cannot count them . 错误多得数不清。
 
 
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|  | 9. | We weren't going to make that mistake twice . 我们不能再重蹈覆辙。
 
 
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|  | 10. | He seems to have mistaken a plus for a minus . 他似乎把正号误作负号了。
 
 
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