作业帮be busy doing 过去式+造句
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be busy doing 过去式+造句
be busy doing 过去式+造句
be busy doing 过去式+造句
was/were busy doing
例：I didn't attend the party because I was busy preparing for the exam.
是do的过去式
was/were busy doing
He was busy washing clothes at that time.
she was busy doing something.
was/were busy doing i was busy doing my homework yesterday
过去式:busied
过去分词:busied
现在分词:busying
be busy doing 过去式+造句
be busy doing造句
be busy doing造句10个
用be busy doing sth.句型造句
be for from ,be busy doing 分别造句
be busy doing sth.造句（注中文）!
请用be busy doing sth 的句式造句
be busy doing sth.造句（注中文）
be+busy+doing=be+( )+(
用be busy doing 和be glad that共造一个造句 中英 急
be busy doing 和 be busy in doing 的区别?
be busy with doing 与be busy doing 区别
be busy doing等于什么
be busy doing sth 例句
be busy in doing sth
造句,各两句.be worth doing 值得做...be busy doing.忙着做 too...to do 太..而不能做
be busy with sth 与be busy doing sth
be busy doing还是be busy to dokuai