Jack bought ____useful book.____book is also very interesting.
问题描述：
Jack bought ____useful book.____book is also very interesting.
A．an；The B．a；The C．an；A D．a；A
为什么啊 要有理由奥!什么时候用A什么时候用THE?有分
答
B.第一个空,因为useful的首音节是[ju]算辅音,用a,第二个空,因为前文有提到这本书,就要用the.