In the question below choose the word(s) or phrase(s) which best fills(s) the gap(s): _____ him in the crowd, i would have told you at once

In the question below choose the word(s) or phrase(s) which best fills(s) the gap(s):

_____ him in the crowd, i would have told you at once

Answer Details

The sentence is in the past tense, and it is discussing a hypothetical situation. The phrase "in the crowd" suggests that the speaker was unable to see the person they are referring to. Therefore, the correct option is "had I seen", which is the past perfect tense of "see". The complete sentence would be, "Had I seen him in the crowd, I would have told you at once."