根据中文补全句子.123451、我妈妈正在看杂志.My mother is ______ _________.2、那只小

根据中文补全句子.12345
1、我妈妈正在看杂志.
My mother is ______ _________.
2、那只小狗正在吃骨头.
That little dog is ________ ________ __________.
3、那个学生正在削铅笔.
That student is _______ __________ _______.
4、我的爷爷正在喝牛奶.
My grandfather is _____ _______.
5、那个女孩正在扫地.
That girl is __________ _____________.