His father began to work____he was seventeen years old.A as

来源：学生作业帮编辑：灵鹊做题网作业帮分类：英语作业时间：2024/06/13 09:11:25

His father began to work____he was seventeen years old.A as old as B as early as B since D while
选什么?为什么?

while (==when )是正确的选择.
A as old as 的后面不能加句子
B as early as的后面不能加句子
B since 的主句必须是现在完成时
D while (== when) 作为连接词,后面的句子谓语动词可以是be动词.又如：
-------- He came unexpectedly to see me WHILE I was busy that day.
又是周末了,

His father began to work____he was seventeen years old.A as His father began to work he was seven years old A.as old as His father began to work____ he was seven years old.A.as old His father began to work____ he was seven years old. His father began to work as___as he was seventeen His father began to work (as early as) he was seven years ol His father began to work _____ he was seven years old 带讲解 His father began to work since he was seven years old.这个句子有错英语翻译翻译：When Marco Polo was seventeen years old ,he began a j 用old,my,was,to,father,he,years,began,when,when,work,twenty连词一篇英语首字母填空When Tom Howard was seventeen years old he was as t his father is _ than his mother A.old four years B.as your y