SHE HAS TAUGHT HER CHILDREN TO PLAY PIANO FOR 4 YEARS. A. SHE STAR...

36. She has taught her children to play piano for 4 years. A. She started teaching her children to play piano 4 years ago. B. She started to teaching her children to play piano 4 years ago. C. She started teaching her children to play piano for 4 years ago. D. She started teaching her children to play piano since 4 years.