As the weather was fine,I opened all the windows．为什么用as,不可以用since吗?

the weather is not as well as it was yesterday The weather is not as well as it was yesterday.为什么用well? Cold as the weather是什么意思? so as 用法Luckily the weather was not so wet as it was today.意思?so……as的用法?it was today 是从句么 As the weather was fine,I opened all the windows．为什么用as,不可以用since吗? cold as the weather was,这句话是什么语法现象.具体分析 how was the weather?翻译! Here was the weather ______Sunday. the weather was not so dry as it __ today( )14、 The weather was not so dry as it ___ today .A was B is C does D be Cold weather and poor soil could not support such a farm economy as was found in the South.as was found in the South在句中做什么成分? The weather was f------ that morning（根据首字母提示填空〉 the weather was so bad we have stayed at homethe weather was so bad we------ have stayed at home A must as well as B might （just）as wellC should D would better The reason the event was cancelled was not so much the poor weather as the lack of interest.这句话该怎么翻译? As was reported on the radio,the weather turned out to be very hot that day为什么改成As we reported on the radio就不对了呢 What was the weather like last week? what was the weather like yasterday? what was the weather like yesterday How was the weather last Sunday?