Can you believe that he has （）go-karting since he was 12 years old？
A.taken up
B.taken on
C.taken off
D.taken to
正确答案：taken up
Can you believe that he has （）go-karting since he was 12 years old？
A.taken up
B.taken on
C.taken off
D.taken to
正确答案：taken up