He spent more than two years becoming a superstar. => Although Janet's voice is nice, her performance is not professional =>
2 câu trả lời
It took him more than two years to become a superstar.
Despite Janet's nice voice, her performance is not professional
It took him more than two years to become a super star
( it takes/ took (O) + time + toV: ai đó dành thời gain làm gì)
In spite of/ despite her voice nice, her performance is not professional