years 可以构成两个词组:1. For years: I haven't been there for years. 2. Over the years: The carved ceilings have suffered woodworm attack over the years. 这两个词组意思差不多,都是“多年来”的意思,可是 for years 前是零冠词而 over the years ...
原句:There will be more than three hundred scientists attending the meeting...原句是还未发生的事情,为什么定语用attending,而不是to attend? 分词做定语相较不定式做定语区别是什么?如果用不定式,to attend 和to be attending 区别是什么?...
Many of the reductions over the past 30 years have been achieved either
by reducing the amount of sugar, salt or fat in a product, or by finding
an alternative ingredient.这个句子have been achieved是什么时态
The largest international database has helped police find out many
crimes which at one time would have ______ unsolved.A.remainedB.maintainedC.keptD.left