中等ENGL-TENS-005
He opened the door, ______ a strange figure in the corridor, and immediately felt a chill.
A. sees
B. saw✓ 答案
C. has seen
D. had seen
解說
In a narrative, maintain past tense consistency. 'Opened' and 'felt' are past simple; 'saw' matches. 'Sees' is present, 'has seen' is present perfect, 'had seen' would indicate an earlier action – all break the tense sequence.