一. 单项选择（共10小题，计10分）
本题共有10个小题，请从每个小题的四个选项中，选出最佳答案。
( )1. — Is the ring made of silver?
— Yes. It is made of best silver in our factory.
A. a; the B. /; the C. a; / D. /; a
( )2. — I don’t believe the toy is made hand. The patterns (图案) are really fine.
— I don’t believe it, either. But no machine is used during the whole process.
A. for B. with C. by D. in
