We have had to work out the solution这里 的“have had to”咋解释

We have had to work out the solution这里 的“have had to”咋解释 We would have finushed the work if we__(have)time.填had had.为什么? we had to 与we have to有什么区别 We would have to go home on foot _ we to work another hour.A.if B.wereC.had D.should为啥? there____no buses ,we had to walk home after work yesterday we had some work to do last Sunday一般疑问句 we have d---------- what we want to do after work . 虚拟语气选择题We went to work on foot yesterday,though we ______by bus.A.could have gone B.must have gone C.ought to have gone D.had better to请问这个选择什么?为什么?说的详细些 Stories we tell every day have had to be rewritten five times to work as well in print as they do ltranslation, please. The work was very hard.We had to work the w_____ day. we'll have to work double time翻译一下吧 -------- means the work we have to do after shool We have to work hard and c_____ with our classmates. --------- means the work we have to do after shool we had to work long time every day .为什么用had?不是用have、?every day不是一般现在是吗?全句是 we had to work long hours every day in order to get more money.为了多赚钱，我们不得不每天长时间地工作。 It ' s ----,we have to work hard .( ) A a hard work B ,an easy work C.hard work We should have to go home on foot____ we to work another hour.A.if B.were C.had D.should为什么选B?先谢谢各位了解释得清楚点吧!拜三拜了!翻译一下吧 23.We wish that you ________ such a lot of work so that you could go to the party with usA) haven't had B) hadn't had C) won't haveD) didn't have