____, I knew nothing ____ the computer. But now I can work ____ it well.
A.At first; about; on B.At last; of; at C.In the end; on; on D.From then on; about; with正确答案A
____, I knew nothing ____ the computer. But now I can work ____ it well.
A.At first; about; on B.At last; of; at C.In the end; on; on D.From then on; about; with正确答案A
