Last week she borrowed my math book.

　　上周她借了我的數(shù)學(xué)書。

　　Is there a computer and a math book?

　　那里有一臺電腦和一本數(shù)學(xué)書嗎？

　　He bought a math book.

　　他買了一本數(shù)學(xué)書。