we are busy ( )our lessons these days.a ,prepare!b,preparing
we are busy ( )our lessons these days.a ,prepare!b,preparing
选择We are _ for the test.A busy prepare B busy preparing C bu
we are busy (preparing )our lesson these days括号中为什么填ING形式
The teachers are busy preparing the exams these days .
Sissi are busy ( ) she lessons these days 填空
We are busy these days. In those days the workers had a hard
You seem very busy these days.Are you ____(prepare for)the e
[ ] What are you busy ___ these days?A.do B.to do C.doing D.
Is Mr.Green really busy these days?( ) He's busy preparing s
Are you busy these days?是什么意思
大学英语作业A:Hi,Sun Yan!What are you busy doing these days?B:I'm
Our teacher is always busy preparing lessons until 11 o'cloc