he is busy ______(write) a letter to his friend.
来源:百度知道 编辑:UC知道 时间:2024/06/08 06:59:30
he is busy ______(write) a letter to his friend.
writing
他正忙于写信给他的朋友.
be busy doing 忙于做某事
busy+ with/at/in sth
busy+ doing sth
比如
He is busy at work.
他忙着工作。
I am busy writing a novel.
我正忙于写小说。
Jean is busy with her work.
writing
be busy (in) doing sth
be busy doing忙于做某事
所以,应该填writing
writing
busy+doing
writing
He is in ____.
he enjoys ____ when he is free
The boy is busy ____(write)to the Michael Jordan.
He is not ____ a fool____.
he is a man of ____ (act)
He is in low ____ today ....
Where is Tom? He ____ shopping. (go)
He is ____ but not _____as you.
where is TOM.he is sitting ____ his parents
what is jack ____? he is tall ang thin