【正文】
Wall ____ all over the world. A. knows B. knew C. is known D. was known story _____ by Granny yesterday. A. was told us B. was told to us C. is told us D. told us 用括號內(nèi)所給動詞的正確形式填空 39。 built C. Does。Unit7 Grammar 2 When to use the active voice? ★ It’s important to know who performs the action. The ORBIS doctor do operations on the plane. When to use the passive voice? ★ It is obvious(顯然 ) who performs the action. ★ We do not know or do not want to know who performs the action. ★ We think the action is more important than the person who performs the action. Be is, am, are was, were + done +by sb Wh