一般过去时被动语态 — 英语填空题
题目
Complete the sentences with the correct passive form of the verbs in brackets (一般过去时被动语态). (1) The ancient bridge ______ (build) about 800 years ago. (2) Paper ______ (invent) in China long ago. (3) These photos ______ (take) by my grandfather in the past.