31.aAccording to the passage, people growing up in rural Illinois struggled because _______________.
(A) they had to fight to survive
(B) the local economy is limited to farming only
(C) there are only limited jobs aside from farming
(D) there are no skilled workers
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統計: A(3), B(5), C(3), D(2), E(0) #802359
統計: A(3), B(5), C(3), D(2), E(0) #802359