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.We bought a large pillow for our dog Kahorta,who loves to lie on it in front of the fire.

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

3.Many large corporations for example,GE,Exxon and IBM,have paid dividends for many years.

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

5.She showed me the books;two novels by Faulkner and a book on economics.

答：1.dog→dog,

2.answer,→answer/answer.

3.corporations→corporations,

4.business→business,/business 

5.books;→books: