have been后加什么詞性

回答

瑞文問答

2024-09-08

have been后加形容詞。與表示職業(yè)的名詞連用，用來詢問或說明某人所從事的職業(yè)。
have been：來過；已經；
been：
v.曾經;曾經到過(某地)；
are的過去分詞;be的過去分詞

擴展資料

　　They have been working on the perfection of the new model.

　　他們一直在努力完善新型號。

　　None of this would have been possible without their help.

　　如果沒有他們的協(xié)助，這事沒有一樣能辦成。

　　What books have been set for the English course?

　　英語課布置要用哪些書？

　　The plans have been under discussion for a year now.

　　這些計劃至今已討論一年了。

　　No new SARS cases have been reported in the region.

　　該區(qū)沒有新增非典型肺炎病例。