一、下面每句都有一个标点符号错误，该用标点处未用标点或标点符号用错，改正错误或补写标点。

1.I don't know how to answer that question?

3.Ouch I think I've broken my toe.

5.It is a dependable fool proof method.

7.In the first quarter prices rose 5 per cent;in the second quarter,3 per cent and in the third 7 per-cent.

9.Stallions yield the highest prices;but mares can also be extremely expensive.

答：1.question?→question. 3.Ouch→Ouch! 5.dependable→dependable, 7.third→third,　 9.prices;→prices

二、下面每句都有一个标点符号错误，该用标点处未用标点或标点符号用错，改正错误或补写标点。

1. Shall I bring in the letters of recommendation, as well as my resume?

3. The delegation will arrive on January 5. 2005.

5. Because, he has worked late every day this week he is determined to finish it early on Friday.

7. I cannot wait any longer for your answer, I assume that you are not interested in the job.

9. Horse breeding has become a big business: and investors are supplying large sums for thorough breeding.

答：1.recommendation, →recommendation 

3.January 5. →January 5

5.Because, →Because

7.answer, →answer / answer.

9.business →business , / business 

三、下面每句都有一个标点符号错误，该用标点处未用标点或标点符号用错，改正错误或补写标点。

1.You should sign all letters before mailing them 2.Do you market your product through retailers.

3.The weather was good yet the plane arrived an hour later. 4.The accountant Mr. Price, delivered a long presentation. 5.What a nice girl she is.

6.There are three requirements for the job, foreign language knowledge, working experience and an MBA degree.

7.We have to constantly renew our knowledge, because, science and technology are developing so rapidly.

8.Investors’ expectations are high, therefore, competitive bidding for breeding animals is brisk.

9.The personnel manager stated, We only hire persons with an MBA degree for that type of position.

10.Our offices are located in Atlanta, Georgia and Birmingham Alabama.

答:　1.them→them.　　2.retailers.→retailers?

3.good→good，　　4.accountant→accountant，

5.is.→is! 　　6.job，→job：

7.because，→because 　　8.high，→high;

9.stated，→stated，“position.→position 　　10.Birmingham→Birmingham

四、下面每句都有一个标点符号错误，该用标点处未用标点或标点符号用错，改正错误或补写标点。

1. I doubt that he can answer your question

3. We are considering Boise, Idaho or Phoenix Arizona as a possible site for our factory.

5. The aircraft exhibition will be open seven days a week from 9 am to 6 p.m.

 7. If you desire additional information please sign and return the enclosed card.

9. The rent is reasonable, moreover, the location is perfect.

答：1. dispensable →indispensable

3. is become →is becoming/has become

5.do →doing

 7.a →an

9.by →with