连词成句，注意单词的大小写及标点符号。

1. the, zither, can, play, who (?)

    __________________________________

2. music, she, does, what, like (?)

    __________________________________

3. like, Daming, Lingling, music, and, Chinese (.)

    __________________________________

4. better, than, Amy, is, Sam (.)

    __________________________________

---Is this __________ English book?  

--- No, it isn’t. It’s __________ Chinese book.

A．a, a

B．a, an

C．an, an

D．an, a