The verb here is "had given"; this is past perfect: it's a perfect tense, because it has a past participle with the -ed ending ("given") and it's the past perfect because the auxiliary verb is the past form of "have": had.
Answer:
We did not know certainly the location of the swamp, its distance from us, nor what lay between us and it.
Explanation:
Yes. that answer is correct. A+
The answer is C. most active
The superlative form means that among the items being compared, that items is the "most" or "least" of them all.