问题补充:
---Will it be a long time I come for the pictures?
----No. It be ready by 3:00.
A. that; can
B. since; will
C. before; should
D. until; must
答案:
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。