Without the work of scientists and inventors before him, Thomas Edison （）so much.
A.正确答案Cdidn't achieve
B.wasn't able to achieve
C.wouldn't have achieved
D.shouldn't have achieved
Without the work of scientists and inventors before him, Thomas Edison （）so much.
Without the work of scientists and inventors before him, Thomas Edison （）so much.
A.正确答案Cdidn't achieve
B.wasn't able to achieve
C.wouldn't have achieved
D.shouldn't have achieved
