occasion that 和 occasion whenoccasion 后面的介词为什么不用that 而是用 when?

occasion that 和 occasion whenoccasion 后面的介词为什么不用that 而是用 when? occasion 此时/彼时怎么说?on this/that occasion? occasion和situation和condition怎么区别? on one occasion和 once可以互换吗?为什么 a tragic accident和a sad occasion区别 如何区别rise with it 和rise to itBut he said this: The dogmas of the quiet past are inadequate to the stormy present. The occasion is piled high with difficulty, and we must rise with the occasion. I love that. Not rise to it, rise with it. A be able to和canI went there in 1984,and that was the only occasion when I ________ the journey in exactly two days.A.must take B.must have madeC.was able to make D.could make We have decided to have a party in honor of the occasion.这里的in honor of和the occasion分别是什么意思? it will rain tomorrow,in that ____we will organize indoor eventsA.weatherb.conditionc.cased.occasion为什么不选A? 各位帮忙 下面单词的意思和音标income morals libery propose occasion chain survival in formal occasion还是on formal occasion? 简单的句子分析.While here’s no question that continuous stress is harmful,several studies suggest that challenging situations in which you’re able to rise to the occasion can be good for you.定语从句和宾语从句怎么判断? occasion?The Oscar Award ceremony is an occasion---every hungry star wants to be senn on the red carpet.A.which B.where C.when D.that这个题我觉得B.C似乎都能讲通? A fad occasion是什么意思 on occasion是什么意思 Occasion什么意思? On the occasion