The sentence should be "By nightfall, they <span>will have been driving</span> for ten hours" since this is perfect in the sense that it WILL have happened in the past by the time it happens.
You have to do two rounds of close up reading and it depends on genre too
Noun clause- whatever crops lie in their way
clause subject- crops
object of prep- way
idk about the DO I'm sorry
Answer: d. the effect of the grandfather’s gambling addiction on their relationship
Explanation: I took the same quiz and got it right.