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急.解题思路.每个选项的意思attheschoolsportsmeeting,Peterwasrunningtoofastwhenhea.felldownb.felloffc.fellintod.fellonto解题思路.每个选项意思

题目详情
急.解题思路.每个选项的意思
at the school sports meeting,Peter was running too fast when he _____
a.fell down
b.fell off
c.fell into
d.fell onto
解题思路.每个选项意思
▼优质解答
答案和解析
a