BEFORE CARS_________, PEOPLE_________ HORSES AND BICYCLES. BEFOR...

Question

3. Before cars_________, people_________ horses and bicycles. A. were discovered/ had used B. discovering/ had usedC. had discovered/ used D. discovered/ had used

Answer

3. Before cars_________, people_________ horses and bicycles. A. were discovered/ had used B. discovering/ had usedC. had discovered/ used D. discovered/ had used

BEFORE CARS_, PEOPLE_ HORSES AND BICYCLES. BEFOR...

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