1.If you want to learn skating ,the most important thing for you

问题描述:

1.If you want to learn skating ,the most important thing for you
to learn is_______
A.to keep to balance B.to keep balance
C.to be balancing D.how to keep balance

选D.理解句意就好选了:如果你想学会溜冰,最重要的是学会如何保持平衡.
如何保持平衡how to keep balance
因为是去学,肯定是学如何做这件事.
B句意不完整