题目内容
when Newton was sitting under an apple tree.
A.Fell down an apple | B.Down an apple fell |
C.An apple falls down | D.Down fell an apple |
D
解析
练习册系列答案
相关题目
when Newton was sitting under an apple tree.
A.Fell down an apple |
B.Down an apple fell |
C.An apple falls down |
D.Down fell an apple |