The adjective here is tall.
I'm not sure if you meant "The boys are pulling the rope" or "The boy is pulling the rope" but the answer is either "The rope is being pulled by the boys" or "The rope is being pulled by the boy" respectively.
<span>an unstressed syllable followed by a stressed syllable?
Hope I helped :)</span>
The Vietcong set up checkpoints around the nation, so that would've definitely been a literal and figurative roadblock to any refugees. Hope this helped.