Why do you look sad ? there are so many problem ( )A.remaining to settlyB.remained settlingC.remaining to be settledD.remained to be settled为什么选C呢?能详细解释吗?为什么其他选项不可以

why do you look that 英语翻译Why do you look like so sad?Winter have been arrived,can spring be far away from us? Why do you look sad,Tom?——I（ ）with my friend yesterday.A.piayed B.talked C.fought baby why you look so sad,why you look so mad Why are you sad? why do you look so blue?急 Why do you look so athletic? -Why do you look sad?-There are so many problems____.A.remaining to settlyB.remained settlingC.remaining to be settledD.remained to be settled -Why do you look sad?-There are so many problems____.A.remaining to settlyB.remained settlingC.remaining to be settledD.remained to be settled do you have idea why he ----?a,is looking sad b,looks sadly c looks sad Why are you so ____? You never look happyA. afraidB. luckyC. badD. sad谢谢 高手 指教 You look sad.(对sad进行提问) You look sad today.是什么意思? You look sad today 意思 why do you look so happy?是一般现在时吗? why do you always look at me?why后面为什么要加do? Why do you look so sad?My job is__English,but I find it ,hard to make my students__in it.(选项见A.to teach,interested B.teaching ,interestingC.to teach,interesting D.teaching,interest Why do you look sad ? there are so many problem ( )A.remaining to settlyB.remained settlingC.remaining to be settledD.remained to be settled为什么选C呢?能详细解释吗?为什么其他选项不可以