Is it ture_they have solved the problem of production?

Is it ture_they have solved the problem of production? It is clever of you to have solved this problem. 翻译It is high time that we solved the problem They have had the problem solved. they have had the problem solved 英语翻译The problem is not easily solved because it is in the na Since the problem of method is solved ,talking about the ask 26.____ the problem of method is solved,talking about the ta 英语翻译1.It is vitally important that the problem be solved bef Has the problem been solved ? Is the problem solved ? 这两句有什么 People have solved the problem?变被动语态 This is the way ___ he solved the diffcult problem.