小学英语填空
A:little bob ,can i ask you some questions?
B:yes ,of course.
A:46.[]in english?
B:it is s book.
A:47.[]?
B:it is yellow.
A:48.[]?
B:no,it isn't an english book.it is a chinese book.
A:49.[]?
B:no ,it isn't mine .it is lucy's
A.50[]?
B:my english book is over there ,on my desk.
A:good job!you speak english very well.
B:thank you