__has been said about ,water is needed badly in that cityAS ,WHAT ,THAT,WHEN.书上写填AS,为什么不用THAT呢

__has been said about ,water is needed badly in that cityAS ,WHAT ,THAT,WHEN.书上写填AS,为什么不用THAT呢 __has been announced,we shall have our final exams next month A That B As C It D What __ nothing to talk abou,he said good-bye and went out of the room.A.There was B.There being c.Being D.There been为什么选B. 其他答案为什么不对（特别是A）.英语初学者,望大家见谅.谢了. The matter ( ) you were arguing abou last night has been settled A.that B.what C.what Dfor which The matter ( ) you were arguing abou last night has been settledA.that B.what C.what Dfor which 高三英语题It is commonly believed that it is __too much money has been invested ...It is commonly believed that it is __too much money has been invested in real estste __has caused the crisis in Wall Street. have been said和have said有区别吗 I Said; “where You Been?” He Said; “ask Anything.” He is said to have been there __has been done to improve his pronounciation,he find it difficult to communicate with foreigners.A.In spite of thatB.Although heC.Though whatD.In spite of what选哪个?为什么? __has recently been done to prove more Englsh booksfor the students,a shortage of reading materials remains a serious problem.选项A.what B.Though what C.In spite of D.That正确答案C i had been said 还是i have been said最好来些例句 ^^ what you taling abou （）have you been away from your hometown?一For abou（）have you been away from your hometown?一For about 13 years.AHow soon BHow far CHow long DHow often 有没有is said to have been doing的结构 She said （that）she had never been to Paris. they said they have been married for ten years We had been studying what our enemy had said.