30.We have not had ____ for many weeks.A.such cold day as this B.such cold a day as this C.such a cold day like this D.such a cold day as this 答案是B．．为什么?

Yesterday Imet Sandy .We _ each other since _ middle school.A.have not seen ;finishedB.have not seen ;finishingC.had not seen ;finishedD.had not seen ;finishing If it _ for the rain,we _ the picnic yesterday.A were not; could have hadB were not; could haveC had not been; could have had If we had not got everything ready by now ,we (have)__a terrible time tomorrow 选用had better,himself,must,can,should,yourselves,had better not ,mustn't ,don't have to ,can't填空1 your mother is getting better and better ,you _ worry about her.2.We _ wash our hands before meals3.There is air around us,though we _see it.4.Mi We _ our breakfast when the old woman came to the door A;just habe had B;had iust had C;just hadD;have just had 英语We _ our physics class in the lab tomorrow.A.have B.will have C.are having D.had we have not 缩写 We have decided not to go,though it was a difficult _(decide) So far,we not _____(have)a reply.答案为什么是have not had啊?we 后面能加not吗？ we have not had to fight for many yeas against ous enemies.求翻译 请问这个句子对吗?they had informed us,we would not have came here now “I just miss once,but forgot that we have not had their -We have kept the promise,do not know when,had vanished. so far ,we have not had a replay 分析一下语态 句子成分 we would have finished our task if you had had not delayed your job.检查虚拟语气语法对不对?we would have finished our task if you had had not delayed your job, ______for the leadership of the Party,we should not have succesedA Had not it been B Had it not been C There was D Is there if we（） adequate preparations,the conference would not have been so successful为什么要填had not made? If we _ the other road,we might have arrived here in time for the meeting.A.take B.had taken C.took D.have taken