in
be busy doing sth.=be busy with sth.忙于做某事,
如：I'm busy with my homework.=I'm busy doing my homework.with后面接事（sth.）,没有with的话后面要接做什么事（doing sth.）.
When I went into the office,the teachers were busy ____ prep
1个回答
相关问题
-
when i get into the office,the teachers _ _ some
-
when the teacher came into the classroom,the students were (
-
when i went into the room,I found it （）already
-
when i went into the room,I found it ()already
-
1.When I entered the teachers' office,I found our headmaster
-
意思：When I walked into the classroom, the teacher was handing
-
倒装After the patients went into the office ,only(a doctor the
-
英语翻译I got up early in the morning,When I went into the livin
-
I was ____what I wanted to speak when my teacher went into t
-
When the teacher walked into the classroom, the students ___