When ho came back from his work,it was half past nine.=He _____come back from his work ____9:30.(同义句转换）
问题描述：
When ho came back from his work,it was half past nine.=He _____come back from his work ____9:30.
(同义句转换）
答
came at
答
didn't until
意为他直到9点半才回来
答
He （didn'）come back from his work (until) 9:30.
not...until句型
答
has by