一般过去时 主动语态:did 被动语态:waswere done We cleaned the classroom yesterday. 昨天我们打扫了教室. The classroom was cleaned by us yesterday. 昨天教室被我们打扫了. The window was broken by my son. 窗子是我儿子打破的. Were many trees planted on the hill yesterday 昨天山上种了许多树吗? How much money was stolen in all 一共被偷了多少钱? 【查看更多】
