he didn't work out the problem ( ) I explained ( ) to himA.until,what B.until ,how 选哪一个,为什么我选what,不是说how应该有it之类的吗，what后面没有，为什么这题选B呢

i guess it didn't work out that way. He didn't come to work yesterday.He什么ill. He said nothing and went out ,didn't he?找错 Simon didn't work out the problem.(同义句转换) Simon ( ) ( ) work out the problem. He didn't work hard.那个didn't 什么时候加他,什么时候不加. he did't plan his time well .he didn't finish the work合并 it didn't quite work 55页20.Jake I didn’t belive he could work it out -----,but he really got it right A.so I didn’t B.me too C.neither did I D.so did I 为什么 He worked hard,but he didn't improve his work.(改为同义句）_______ he worked hard ,he didn't improve his work. He didn't go to work because he was ill.(同义句)→He didn't go to work because of _____ _____. his brother___because he was illA.went to work.B.doesn't go to work.C.didn't go to work.D.don't go to work It appeared that he _____ work for a living.填didn't have还是didn't have to? Men who didn't work didn't eat didn't going out she work to about think 连词成句 why didn't anything work out the way as we expected麻烦帮我翻译下! he must have finished the work by the end of the month,____?a.mustn't b.hadn't he c.didn't he d.hasn't he 翻译He didn't work hard enough and so he failed the examination. Because he was ill,so he didn't go to work. (改错)