We can never expect ______ bluer sky unless we create a less polluted word.It was a cold winter night and the moon was shining brightly across ______ night sky.第一空a，第二空the。都是名词SKY为什么冠词不一样呢?
...叫做连接代词或者连接副词）。例如：
We agreed how to try it . 我们就怎样试行取得了一致意见。（摘自张道真编著：《英语常用动词用法词典》p.24）这里的 how是连接副词。
We could not agree (as to) what to do next. 对下一步怎么办，我...
Mainly because I know how harsh these sort of terrains can be.疑问语序：How harsh can these sort of terrians be？陈述语序：How harsh these sort of terrians can be？这里的How harsh是做表语吗？疑问语序：How happy can we be friend？陈述语序：How happy we can be friend？...