题目内容
从所给的四个选项中选择最佳答案
______ the time he was six, the boy ______ 3000 English words
.[ ]
A
.At, learnedB
.On, had learnedC
.During, would learnD
.By, had learned
答案:D
练习册系列答案
相关题目
题目内容
从所给的四个选项中选择最佳答案
______ the time he was six, the boy ______ 3000 English words
.[ ]
A
.At, learnedB
.On, had learnedC
.During, would learnD
.By, had learned