The price of ____ jewel is decided by the sort of _____material used.
问题描述：
The price of ____ jewel is decided by the sort of _____material used.
A.the; the B.the; / C./; the D./; /
答
选B,句子是说宝石的价值取决于它是由哪种材料构成的
第一个空是特指宝石,第二个空是泛指,就是材料