1. Bubbles， flaws， and other irregularities diffuse the light that passes through stained glass， _________ the glass sparkle.
A. which making
B. and making
C. making
D. to making
答案：C
分析：空格前的句子結構完整，這里的分詞作狀語。A中用which來引導非限制性定語從句，而句中無謂語，錯;B中and作為連接詞，而and后的句子不完整，沒有謂語，錯;D錯，不定式的結構應該是to do.