語法課ket：不同時態(tài)下動詞的被動語態(tài)變化

不同時態(tài)下動詞的被動語態(tài)變化 1. 一般當(dāng)前被動語態(tài)：is/am/are V-ed。比如：English is widely spoken all over the world. 2. 一般過去時的被動語態(tài)：was/were V-ed。比如：The underground was built five years ago. 3. 一般未來被動語態(tài)：①