问题补充:
the river in front of my house was ,but its clean now.改同义句:the river in front of my house —— —— ——dirty before.每个空填一个单词
答案:
used to be
时间:2024-06-14 00:11:48
the river in front of my house was ,but its clean now.改同义句:the river in front of my house —— —— ——dirty before.每个空填一个单词
used to be