many difficult have ___as a result of the changeover to a new type of fuel.A raised B been raised C risen D arisen为什么,have been raised错误在哪?

many times we don't know why we have to go through bad and difficult times many things happened in our childhood have been lose,which are difficult to be May you have to stay in a mood of many people are difficult May you have to stay in a mood of many people are difficult have difficult time doing Our homework is ( )difficult and we have too( ).A.to;much B.too;many C.too;more D.too;much The examination( )very difficult,as many shudents failed to pass them.A.must have been B.can be C.should have beenD.would have been have difficult with 与have difficult in 的区别 For many years,people____electric cars.however,making them has been more difficult than predicted.A had dreamed of B have dreamed of C dreamed of D dream of With so many problems to deal with ahead,they _____ another difficult year.A.is goin B.are having C.are going to have g to have D.have 翻译 选择哪个为什么 That job is quite difficult .I can understand why you have run into so many problems.That job is quite difficult .I can understand why you have run into so many problems.这句话怎么翻译啊,“run into”在这句话里怎么解释? for many years,people _____ electric cars.For many years,people____electric cars.however,making them has been more difficult than predicted.A had dreamed of B have dreamed of C dreamed of D dream of have a difficult time意思及用法 have difficult in doing 怎么用 have difficult in doing sth是什么意思? Have you ever come_______such a difficult problem you have many good We have many classes___saturday.