问题补充:
---Did you catch what the teacher said?
---No. She spoke so fast I couldn’t hear her very clearly.
A. which
B. that
C. when
D. since
答案:
A. which
(答案→)B. that
C. when
D. since
解析:考查从句的连接词。“你听懂老师讲的了吗?”“不。她说的那么快以至于我听得不是太清楚。”so...that...“如此......以至于......”,表示结果。故选B。