---Will it be a long time I e for the pictures?
----No. It be ready by 3:00．
A. that; can
B. since; will
C. before; should
D. until; must
网友回答
A. that; can
B. since; will
(答案→)C. before; should
D. until; must
解析：考查固定句型和情态动词：第一空填before，用It will be+一段时间+before…,要过多久才…,第二空填should表示按道理应该，句意：我还要很长时间才能拿照片吗？--不用，到三点应该可以拿到了。选C。