Even more serious difficulties include freezing weather conditions and
heavy storms.这句话中condition用了复数,但是练习题中condition答案给的单数,请问老师:怎么理解何时condition用单数,何时复数?
...ed, he would not mind. (=Whatever happened, he would not mind.)让步状语从句的连接词是no matter what,还是no matter?可以认为what happened是一个名词性从句,而no matter是一个名词性的让步状语从句连接词吗?whatever happened可以认为是一个名词性的从...
...处) and the necessity of cultivating
high-quality leisure to replace the time most now spend on mindless device use.
Each chapter concludes with a collection of practices, which are designed to
help you act on the big ideas of the chapter. You can view these practices as a
toolbox meant to aid your...
... watched TV while she ate her supper.我的疑问是:as所在句子的主从句的主语是否要相同?as所在句的延续性动词为什么不用be doing?第4句对吗?为什么不用be doing? while可以换as吗?表达"一边...一边..."时,as与while的区别?谢谢!
While on a hiking trip, our cooks prepare delicious meals.While listening to the radio, she fell asleep.If asked to answer the question, please speak louder.老师说状语从句主从句主语一致从句省略主谓,这三个句子都是吗?可是第三个句子主语是什么呢
...ur basic alternatives.这里面I have been able to discover 我能够发现的。但这里面为什么不用I have discovered?用have been able to是表示当时做某事的“能力”吗?其结果对现在产生影响(discover终结短暂动词)。句2: They have been able to keep up cheer...