Hello !!
I think what you mean is :
Because All but one of the factories "have" collapsed.
Hope It Helped!
<u>And Tell me if The answer is wrong. . .</u>
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#LearnWithBrainly
Jace ^-^
Answer:
have is the answer I believe
B. a border line indicating forbidden settlement west of the Appalachians.
Explanation:
Brainliest please?
Black
I'm pretty sure it's A