问题
It is ____ useful book. ____ book is on her desk.
A:a
B:an
C:the
D:/;
B:an
C:the
D:/;
正确答案是：
同类题型
She is a vegetarian. She will __________ ifyou mention eating meat in front of her.
Did you see a boy in blue pass by just now—No, sir. I ______ a magazine.
He plays_______ piano for 30 minutes every evening, so she can play it very well.
How was _____ meal in my home—It was wonderful. Your mother is _____ excellent cook.