weneedtohavesomepractice()ourtheory.A.onwhichtobaseB.tobaseC.tobaseD.onthattobase为什么选A！
2021-04-07 101次 反馈错误 加入收藏 正确率 : 100%
题目内容：
we need to have some practice( ) our theory.A .on which to base B .to base C.to base
D.on that to base 为什么选A！
优质解答
A
base on 固定搭配,在这里是介词前置了.
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