Books require hard work and practice and, like sports, they can be both a （）and a delight.
A.正确答案Cencouragement
B.dare
C.challenge
D.prodding
Books require hard work and practice and, like sports, they can be both a （）and a delight.
Books require hard work and practice and, like sports, they can be both a （）and a delight.
A.正确答案Cencouragement
B.dare
C.challenge
D.prodding
