this is one of the main challenges the government faces.是什么从句?

This is one of the ____watches.(run) This is one of the _______watch(run) this one really is out of the This dress is one of the ( visit ) Miss Black is one of the m什么of this study life is difficult,this is one of the greatest---(ture) 10.This is the only one of the books published Of all the shops,this one is the _____(bad) This bridge is three times the length of that one.. This is one of the most famous( )in China.(church) This is the ____(one)page of my English diary. this is one of the most famous---------(hero) names this is one of the ways to show my This is the ____(one)day of school This is one of the reasons why .这是什么从句 This is one aspect of C++ this is the second problem Continuing the last one. thx a lotProblem 2*Continuing the discussion of the previous example, we reiterate the importance of designing check-writing systems to prevent alteration of check amounts. One common security m This being the case,如句子：This being the case,china is one of developping countries.