At the begining of the class,they sang an English song.同义句同义句改写改为The class ______ _______ an English song.在横线上填词
问题描述:
At the begining of the class,they sang an English song.同义句
同义句改写
改为The class ______ _______ an English song.在横线上填词
答
a song is sang at the beginning of the class by them.
答
The class was singing an English song.
过去进行时。
答
began with