Question

_______ made his teacher angry.

A. He was late
B. Whether he was late
C. What he was late
D. That he was late

Answer 1

答案D
考查主语从句。句意：他迟到让他的老师不高兴。_______ made his teacher angry.中缺少主语，且主语不缺成分，所以用That引导主从，且That不能省略。选D。