I am afraid we'll have to take an autorikshaw; the last bus ______
Verified Answer
A. Left an hour ago
B. Had left an hour ago
C. Has an hour ago left
D. Has just left an hour ago
Explanation:
The phrase 'an hour ago' specifies a definite point in the past. For actions completed at a definite time in the past, the simple past tense is used. Therefore, 'left an hour ago' is the correct grammatical construction.