影音先锋制服丝袜_欧美 国产 日本_亚洲欧美综合自拍_亚洲最大成人在线观看_成人一区二区三_色呦呦网站入口_亚洲欧美高清在线_黄页网站在线看_一卡二卡在线观看_在线观看免费黄网站

There is such a problem _________ we all should _________.

There is such a problem _____ we all should _____.

A．as; pay attention to it                   B．that; attract our attention

C．as; pay attention to                    D．that; attract our attention to it

There is such a problem _____ we all should _____．

       A．as; pay attention to it            B．that; attract our attention   

         C．as; pay attention to             D．that; attract our attention to it

There is such a problem _____ we all should _____．

      A．as; pay attention to it          B．that; attract our attention   

       C．as; pay attention to            D．that; attract our attention to it

There is such a problem _____ we all should _____．

A．as; pay attention to it                                B．that; attract our attention

C．as; pay attention to                                 D．that; attract our attention to it